CN112374816A - Light heat-insulating concrete and preparation method thereof - Google Patents
Light heat-insulating concrete and preparation method thereof Download PDFInfo
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- CN112374816A CN112374816A CN202011279557.5A CN202011279557A CN112374816A CN 112374816 A CN112374816 A CN 112374816A CN 202011279557 A CN202011279557 A CN 202011279557A CN 112374816 A CN112374816 A CN 112374816A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0046—Premixtures of ingredients characterised by their processing, e.g. sequence of mixing the ingredients when preparing the premixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/601—Agents for increasing frost resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a lightweight heat-insulating concrete and a preparation method thereof, wherein the lightweight heat-insulating concrete comprises the following raw materials in parts by weight: 50-80 parts of cement; 150 portions of water and 180 portions of water; crushing stone: 120-180 parts; river sand: 240 portion and 350 portions; foam slurry: 3.3-5.5 parts; polycarboxylic acid water reducing agent: 3-5 parts; an antifreezing agent: 8-14 parts of an antifreezing agent, wherein the antifreezing agent comprises volcanic ash and inorganic salt, and the mass ratio of the volcanic ash to the inorganic salt is (2-5): 1. the aim of preventing the concrete from cracking easily is fulfilled by adding the antifreezing agent; the invention also provides a preparation method of the light heat-insulating concrete, which has the aim of improving the mixing uniformity of the antifreezing agent, the foam paddle and other materials.
Description
Technical Field
The invention relates to the field of concrete, in particular to light heat-insulating concrete and a preparation method thereof.
Background
The light concrete is also named as foam concrete, and is a novel light heat-insulating material containing a large number of closed air holes, which is formed by fully foaming a foaming agent in a mechanical mode through a foaming system of a foaming machine, uniformly mixing the foam with cement slurry, then carrying out cast-in-place construction or mould forming through a pumping system of the foaming machine and carrying out natural curing.
At present, light concrete is often used as a roof heat-insulating layer, and a worker lays a heat-insulating layer on a roof main body during construction so as to reduce indoor and outdoor heat exchange. Therefore, when meeting in winter and spring, the accumulated snow on the roof melts into water and permeates into the lightweight concrete, and when the temperature is reduced, the water in the lightweight concrete freezes and expands in volume, so that the moisture in the lightweight concrete continuously changes in state, and the lightweight concrete is easy to crack.
Disclosure of Invention
In view of the defects of the prior art, the first object of the invention is to provide a lightweight thermal insulation concrete which has the advantage of reducing the cracking of the lightweight concrete.
The second purpose of the invention is to provide a preparation method of the lightweight heat-insulating concrete, which has the advantage of improving the mixing uniformity of the antifreezing agent, the foam paddle and other materials in the concrete.
In order to achieve the first object, the invention provides the following technical scheme: the lightweight thermal insulation concrete comprises the following raw materials in parts by weight:
50-80 parts of cement;
150 portions of water and 180 portions of water;
crushing stone: 120-180 parts;
river sand: 240 portion and 350 portions;
foam slurry: 3.3-5.5 parts;
polycarboxylic acid water reducing agent: 3-5 parts;
an antifreezing agent: 8-14 parts of an antifreezing agent, wherein the antifreezing agent comprises volcanic ash and inorganic salt, and the mass ratio of the volcanic ash to the inorganic salt is (2-5): 1.
by adopting the technical scheme, because the volcanic ash is adopted in the antifreezing agent to wrap the inorganic salt, the seepage of the inorganic salt from the volcanic ash is delayed, so that after the concrete construction, especially after the humidity in the concrete rises, the inorganic salt continuously seeps outwards and is dissolved in water, the freezing point of the water in the concrete is reduced, the water in the concrete is not easy to freeze, the change of the state between the liquid and the solid generated by the change of the temperature of the water in the concrete is reduced, and the lightweight heat-insulating concrete is not easy to crack.
Further, the concrete comprises the following raw materials in parts by weight:
cement: 65-76 parts of a binder;
water: 160-168 parts;
crushing stone: 150-;
river sand: 280-310 parts;
foam slurry: 3.3-5.5 parts;
polycarboxylic acid water reducing agent: 4 parts of a mixture;
an antifreezing agent: 11 parts, wherein the antifreezing agent comprises volcanic ash and inorganic salt, and the mass ratio of the volcanic ash to the inorganic salt is (2-5): 1 in the formula (I).
Further, the antifreeze is prepared by calcining volcanic ash and inorganic salt at 850 ℃.
By adopting the technical scheme, the inorganic salt is melted during high-temperature calcination and enters pores of the volcanic ash, so that the volcanic ash wraps the inorganic salt, and the retention time of the inorganic salt in the concrete is prolonged to achieve the purpose of delaying the release of the inorganic salt.
Further, the antifreezing agent also comprises glass fibers, and the mass ratio of the glass fibers to the inorganic salt is (6-9): 1.
by adopting the technical scheme, because the expansion coefficient of the glass fiber is smaller than that of the concrete, when the temperature of the communication environment changes in winter and spring, micro pores are easily formed between the glass fiber and the concrete, and water is reserved in the pores, so that the inorganic salt bonded on the glass fiber slowly seeps out of volcanic ash and enters the water, and diffuses to a larger range in the concrete along the pores, and the dispersion uniformity of the inorganic salt in the concrete is improved.
Furthermore, the antifreezing agent is prepared by calcining volcanic ash and inorganic salt at 850 ℃, and adding glass fiber for continuous calcination after the calcining temperature is reduced to 500 ℃.
By adopting the technical scheme, the inorganic salt is melted during high-temperature calcination and enters pores of the volcanic ash, so that the volcanic ash wraps the inorganic salt, the glass fiber is heated and softened after being added, and the volcanic ash with the inorganic salt is bonded to the glass fiber, so that the glass fiber drives the volcanic ash to be dispersed into concrete when the antifreezing agent is mixed with other materials.
Further, potassium chloride is used as the inorganic salt.
Further, the foam slurry is prepared by mixing a foaming agent and water and uniformly stirring, wherein the mass ratio of the foaming agent to the water is 1: 10.
Further, the foaming agent is an animal foaming agent.
In order to achieve the second object, the invention provides the following technical scheme:
a preparation method of light heat-insulating concrete comprises the following steps: s1, mixing cement, water, river sand, gravel and a polycarboxylic acid water reducing agent, and uniformly stirring;
s2, pouring the foam slurry and the antifreezing agent into the material prepared in the S1, and uniformly stirring to obtain a finished product.
By adopting the technical scheme, the foaming slurry, the antifreezing agent and other materials are mixed and stirred, so that the distribution and aggregation of the antifreezing agent are improved.
In conclusion, the invention has the following beneficial effects:
firstly, because the antifreezing agent is adopted, and because the volcanic ash is adopted in the antifreezing agent to wrap the inorganic salt, the seepage of the inorganic salt from the volcanic ash is delayed, so that after the concrete construction, especially after the humidity in the concrete rises, the inorganic salt continuously seeps outwards and is dissolved in water, thereby lowering the freezing point of the water in the concrete, leading the water in the concrete to be difficult to freeze, further reducing the state change between liquid and solid generated by the temperature change of the water in the concrete, and leading the lightweight heat-preservation concrete to be difficult to crack.
Secondly, because the glass fiber is added, the volcanic ash adhered with the inorganic salt is adhered to the glass fiber and mixed into the concrete, when the temperature changes, tiny gaps are generated between the glass fiber and the concrete, so that water containing salt flows in the gaps between the glass fiber and the concrete, the diffusion area of the salt is increased, and the aim of reducing the concrete cracks is further fulfilled.
Detailed Description
The present invention will be described in further detail with reference to examples. The special description is as follows: the following examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer, and the starting materials used in the following examples were obtained from ordinary commercial sources unless otherwise specified. Wherein the cement is ordinary portland cement; the river sand fineness modulus is: 3.3-2.3, the particle size of the broken stone is 5-10mm, and the glass fiber is HJ-001 glass fiber from Shandong Hongyao engineering materials Co; both animal and vegetable foaming agents are available from Weihai Zhongsheng new building materials Co.
Preparation example of intermediate
Preparation example 1
3.5kg of volcanic ash and 1kg of potassium chloride are weighed and calcined at 850 ℃ to obtain the antifreezing agent.
Preparation example 2
5kg of volcanic ash and 1kg of potassium chloride are weighed and calcined at 850 ℃ to obtain the antifreezing agent.
Preparation example 3
2kg of volcanic ash and 1kg of potassium chloride are weighed and calcined at 850 ℃ to obtain the antifreezing agent.
Preparation example 4
3.5kg of volcanic ash and 1kg of potassium chloride are weighed and calcined at 850 ℃, and 9kg of glass fiber is added for continuous calcination after the calcination temperature is reduced to 500 ℃ to obtain the antifreezing agent.
Preparation example 5
2kg of volcanic ash and 1kg of potassium chloride are weighed and calcined at 850 ℃, and 9kg of glass fiber is added for continuous calcination after the calcination temperature is reduced to 500 ℃ to obtain the antifreezing agent.
Preparation example 6
5kg of volcanic ash and 1kg of potassium chloride are weighed and calcined at 850 ℃, and after the calcination temperature is reduced to 500 ℃, 6kg of glass fiber is added and continuously calcined to obtain the antifreezing agent.
Preparation example 7
5kg of volcanic ash and 1kg of sodium chloride are weighed and calcined at 850 ℃, and after the calcination temperature is reduced to 500 ℃, 6kg of glass fiber is added and continuously calcined to obtain the antifreezing agent.
Preparation example 8
10kg of water and 1kg of animal foaming agent are weighed and stirred uniformly to prepare the foam paddle.
Examples
Example 1
S1, weighing 70kg of cement, 160g of water, 161kg of broken stone, 295kg of river sand and 4kg of polycarboxylic acid water reducing agent, mixing the materials, and uniformly stirring;
s2, pouring 4.4kg of foam slurry prepared in preparation example 8 and 11kg of antifreezing agent prepared in preparation example 1 into the material prepared in S1, and uniformly stirring to obtain a finished product.
Examples 2 to 6
Examples 2 to 6 differ from example 1 in the amounts of the individual components, which were otherwise identical to example 1, and the amounts of the individual components of examples 2 to 6 are shown in Table 1.
Table 1 examples 1-6 amounts of each material
Example 7
The present embodiment differs from the embodiment in that: the antifreeze shown in S2 is prepared according to preparation example 2.
Example 8
The present embodiment differs from the embodiment in that: the antifreeze shown in S2 is prepared according to preparation example 3.
Example 9
The present embodiment differs from the embodiment in that: the antifreeze shown in S2 is prepared from the antifreeze shown in preparation example 4.
Example 10
The present embodiment differs from the embodiment in that: the antifreeze shown in S2 is prepared from the antifreeze shown in preparation example 5.
Example 11
The present embodiment differs from the embodiment in that: the antifreeze shown in S2 is prepared from the antifreeze shown in preparation example 6.
Example 12
The present embodiment differs from the embodiment in that: the antifreeze shown in S2 is prepared according to preparation example 7.
Comparative example
Comparative example 1
S1, weighing 70kg of cement, 160g of water, 161kg of broken stone, 295kg of river sand and 4kg of polycarboxylic acid water reducing agent, mixing the materials, and uniformly stirring;
s2, pouring 4.4kg of the foam slurry prepared in the preparation example 8 into the material prepared in the S1, and uniformly stirring to obtain a finished product.
Comparative example 2
S1, weighing 70kg of cement, 160g of water, 161kg of broken stone, 295kg of river sand and 4kg of polycarboxylic acid water reducing agent, mixing the materials, and uniformly stirring;
s2, pouring 4.4kg of foam slurry prepared in preparation example 10 and 11kg of potassium chloride into the material prepared in S1, and uniformly stirring to obtain a finished product.
Performance test
The finished products obtained in examples 1 to 12 and comparative examples 1 to 2 were poured into a mold of 20.1cm by 20.1cm, slightly vibrated manually to fill the mold with the finished product, smoothed, covered with a wrap film, left to stand for 1 day and then removed from the mold. After the mold is removed, the test piece is placed into a curing room (the temperature is 23 +/-2 ℃, and the humidity is 50% +/-5%) and cured for one month. And (3) spraying water for three times a day within 10-15 days after the mold is removed, spraying water for 2 times a day after the mold is removed for 16-27 days, and performing water spraying maintenance in other time. The test pieces were tested according to the following test methods, and the specific test data are shown in table 2.
Detection method
Step 1: and (3) putting the cured test piece into an electric heating air blowing drying box, preserving heat for 24 hours at the temperature of (60 +/-5) DEG C, preserving heat for 24 hours at the temperature of (80 +/-5) DEG C, and drying to be constant at the temperature of (105 +/-5) DEG C.
Step 2: after the test piece had cooled to room temperature, the crack length (l) on the surface of the test piece was marked, measured and recorded1) And the number of cracks (n)1)。
And step 3: and immersing the test piece into a constant-temperature water tank at the temperature of (20 +/-5) DEG C, wherein the water level is 30mm higher than that of the test piece, and keeping for 48 hours.
And 4, step 4: taking out the test piece, wiping off the moisture on the surface of the test piece by using a wet cloth, putting the test piece into a low-temperature box or a freezing chamber which is pre-cooled to-15 ℃, wherein the distance between the test pieces is not less than 20mm, and recording the time when the temperature is reduced to-18 ℃. Taking out the test piece after being frozen at (-20 +/-2) DEG C for 6h, putting the test piece into a constant-temperature water tank with the water temperature of (20 +/-5) DEG C, melting the test piece for 5h as one freeze-thaw cycle until the freeze-thaw cycle is carried out for 25 times, observing the appearance of the test piece after each freeze-thaw cycle, and recording the number of the freeze-thaw cycles when new cracks are generated.
And 5: and (3) placing the test piece subjected to freeze thawing cycle for 25 times into an electrothermal blowing drying oven, and drying to be constant according to the specification of the step (1).
Step 6: record the number of cracks (n) on the surface of the test piece2) And marked cracksCrack length of the lines (l)2) The crack number growth (n) is calculated according to equation 1, and the crack length growth rate (f) is calculated according to equation 21) The specific test data are shown in Table 2.
Formula 1: n is n2-n1
f1＝(l2-l1)/l1*100
In the detection method, constant mass means that the interval between drying processes is 2 hours, and the mass difference of the front side and the rear side exceeds 0.2 percent of the mass of the test piece.
The length of the crack is based on the maximum projected size of the surface, and if the crack extends from one surface to the other surface, the sum of the projected sizes on the two surfaces is used as the standard. Each of the examples and comparative examples was set to 3, and the crack length and the crack size were averaged for three test pieces.
TABLE 2 Performance test data for examples 1-12 and comparative example 1
As can be seen from Table 2, by comparing example 1 with comparative example 1, the addition of the antifreeze significantly retards the generation of new cracks and significantly reduces the crack length and the growth of the number of cracks;
as can be seen from comparison of example 1 with examples 2 to 6, when 70 parts of cement, 160 parts of water, 161 parts of crushed stone, 295 parts of river sand, 4 parts of polycarboxylic acid water reducing agent, 4.4 parts of foam slurry and 11 parts of antifreezing agent are adopted, the generation of new cracks in the concrete is slower than when other amounts of materials are selected; and the growth of the crack length and the number of cracks is slower than that of other materials.
Compared with the comparative example 2, the addition of the volcanic ash delays the loss speed of the inorganic salt, so that the generation time of new cracks is obviously delayed; and simultaneously, the number of cracks of the test piece and the growth of the length of the cracks are reduced.
Compared with the example 1, the addition of the glass fiber provides a partial channel for the flow of salt, and the addition of the glass fiber enables the inorganic salt to be distributed in the concrete more uniformly, so that the generation of new cracks is obviously delayed, and the growth of the size and the number of the cracks is obviously reduced.
As can be seen by comparing example 9 with examples 10-12, when 3.5 parts pozzolan, 1 part potassium chloride and 9 parts are used
When the glass fiber is used, the growth amount of the concrete crack length and the growth amount of the crack number are better than other proportions.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The lightweight heat-insulating concrete is characterized by comprising the following raw materials in parts by weight:
50-80 parts of cement;
150 portions of water and 180 portions of water;
crushing stone: 120-180 parts;
river sand: 240 portion and 350 portions;
foam slurry: 3.3-5.5 parts;
polycarboxylic acid water reducing agent: 3-5 parts;
an antifreezing agent: 8-14 parts of an antifreezing agent, wherein the antifreezing agent comprises volcanic ash and inorganic salt, and the mass ratio of the volcanic ash to the inorganic salt is (2-5): 1.
2. the lightweight thermal insulation concrete according to claim 1, which comprises the following raw materials in parts by weight:
cement: 65-76 parts of a binder;
water: 160-168 parts;
crushing stone: 150-;
river sand: 280-310 parts;
foam slurry: 3.3-5.5 parts;
polycarboxylic acid water reducing agent: 4 parts of a mixture;
an antifreezing agent: 11 parts, wherein the antifreezing agent comprises volcanic ash and inorganic salt, and the mass ratio of the volcanic ash to the inorganic salt is (2-5): 1.
3. the lightweight thermal insulation concrete according to claim 2, wherein the antifreeze is prepared by calcining volcanic ash and inorganic salt at 850 ℃.
4. The lightweight thermal insulation concrete as claimed in claim 2, wherein the antifreeze further comprises glass fibers, and the mass ratio of the glass fibers to the inorganic salt is (6-9): 1.
5. the lightweight thermal insulation concrete as claimed in claim 4, wherein the antifreeze is prepared by calcining volcanic ash and inorganic salt at 850 ℃, and adding glass fiber after the calcining temperature is reduced to 500 ℃.
6. The lightweight thermal concrete according to claim 1, wherein the inorganic salt is potassium chloride.
7. The lightweight thermal insulation concrete as claimed in claim 1, wherein the foam slurry is prepared by mixing and uniformly stirring a foaming agent and water, and the mass ratio of the foaming agent to the water is 1: 10.
8. The lightweight thermal insulation concrete according to claim 7, wherein the foaming agent is an animal foaming agent.
9. The method for preparing lightweight thermal insulation concrete according to any one of claims 1 to 8, which is characterized by comprising the following steps: s1, mixing cement, water, river sand, gravel and a polycarboxylic acid water reducing agent, and uniformly stirring;
s2, pouring the foam slurry and the antifreezing agent into the material prepared in the S1, and uniformly stirring to obtain a finished product.
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| CN2020109737856 | 2020-09-16 | ||
| CN202010973785 | 2020-09-16 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB943631A (en) * | 1959-06-17 | 1963-12-04 | Paul Martin Myatt Banks | Light weight concrete |
| CN106431487A (en) * | 2016-09-29 | 2017-02-22 | 中国科学院重庆绿色智能技术研究院 | Foam concrete |
| CN107082593A (en) * | 2017-05-25 | 2017-08-22 | 胡祥丽 | A kind of concrete and preparation method thereof |
| CN109574598A (en) * | 2019-01-29 | 2019-04-05 | 山东承坤信息科技有限公司 | A kind of preparation process of environment-friendlydurable durable construction material |
| CN110372290A (en) * | 2019-07-01 | 2019-10-25 | 苏州混凝土水泥制品研究院有限公司 | A kind of large dosage volcanic ash foam concrete material and preparation method thereof |
| CN110627428A (en) * | 2019-10-30 | 2019-12-31 | 南通吉泰新型建材有限公司 | Energy-saving environment-friendly concrete and preparation process thereof |
-
2020
- 2020-11-16 CN CN202011279557.5A patent/CN112374816B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB943631A (en) * | 1959-06-17 | 1963-12-04 | Paul Martin Myatt Banks | Light weight concrete |
| CN106431487A (en) * | 2016-09-29 | 2017-02-22 | 中国科学院重庆绿色智能技术研究院 | Foam concrete |
| CN107082593A (en) * | 2017-05-25 | 2017-08-22 | 胡祥丽 | A kind of concrete and preparation method thereof |
| CN109574598A (en) * | 2019-01-29 | 2019-04-05 | 山东承坤信息科技有限公司 | A kind of preparation process of environment-friendlydurable durable construction material |
| CN110372290A (en) * | 2019-07-01 | 2019-10-25 | 苏州混凝土水泥制品研究院有限公司 | A kind of large dosage volcanic ash foam concrete material and preparation method thereof |
| CN110627428A (en) * | 2019-10-30 | 2019-12-31 | 南通吉泰新型建材有限公司 | Energy-saving environment-friendly concrete and preparation process thereof |
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Denomination of invention: A lightweight insulation concrete and its preparation method Effective date of registration: 20230531 Granted publication date: 20220712 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Huzhou Linghu Small and Micro Enterprise Sub branch Pledgor: Huzhou Shangjian Huayu Concrete Co.,Ltd. Registration number: Y2023330001025 |