CN100360457C - Cement-base dual-liquid slip-casting material - Google Patents
Cement-base dual-liquid slip-casting material Download PDFInfo
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- CN100360457C CN100360457C CNB2005100125775A CN200510012577A CN100360457C CN 100360457 C CN100360457 C CN 100360457C CN B2005100125775 A CNB2005100125775 A CN B2005100125775A CN 200510012577 A CN200510012577 A CN 200510012577A CN 100360457 C CN100360457 C CN 100360457C
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- 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
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a dual-slurry pouring material which uses cement as a basic raw material. The present invention is composed of a powdery hybrid material A and a hybrid material B, which form pouring slurry when water is added, wherein the hybrid material A comprises the following components: 30 wt% to 98.1 wt% of sulphate aluminium cement, 0.1 wt% to 0.5 wt% of citric acid which is a retarder, 0 wt% to 0.8 wt% of polyacrylamide which is a flocculating agent, 0.6 wt% to 1.5 wt% of water reducing agent FDN and 0 to 69.1 wt% of fly ash which is an inorganic filler; the hybrid material B comprises the following components: 20 wt% to 88 wt% of portland cement, 6 wt% to 15 wt% of gypsum powder, 0 wt% to 0.7 wt% of flocculating agent UWN, 0.4 wt% to 1.0 wt% of lithium carbonate which is a coagulant, 0.5 wt% to 1.3 wt% of water-reducing agent FDN, 2.0 wt% to 5.0 wt% of lime and 0 wt% to 70.8 wt% of fly ash which is an inorganic filler.
Description
Technical field
The present invention relates to a kind of is the extraordinary material of construction of basic raw material preparation with cement, is specially adapted to quickly fixating sand, squeegees, operation occasions such as setting-out, leak stopping.
Background technology
Injecting paste material is the means with force feed, and the slurries with certain gel time are injected in loose soil layer or the wet formation crack, and after slurries condensed, the particle of fixed soil or fill formation fractures was improved the mechanical property of soil layer (rock stratum).This reinforcement means equipment to the stratum is simple, takes up an area of for a short time, does not influence traffic, and reinforcement depth can deeply can be shallow, and the duration is short, instant effect, and the noise small vibration is little in the construction.In many fields widespread uses such as civil engineering, public works, tunnel, subway, mine engineerings.The grouting process that adopts at present is divided into single liquid, two kinds of forms of biliquid both at home and abroad, should, from any adjustment gel time, prolongation can be annotated the angle of time and be seen that the two fluid grouting adaptive surface is wider significantly especially as required.Requiring the slurries gel time very short, under the situation about can grow the notes time, single liquid slurry is incomparable at all.Two fluid grouting is currently used to be sodium silicate grout (hereinafter to be referred as CS liquid) substantially, and " water glass+cement class " slurry material especially wherein uses more general.Its advantage is that gel time can be adjusted as required flexibly from several seconds to several minutes, and material source is extensive, low price, nontoxicity.Shortcoming is that gel strength is on the low side, poor permeability, the bad keeping of water glass, because hydrolytic action, its leaching thing will influence environment, and weather resistance is also relatively poor, because a lot of water blockoffs of above-mentioned influence began again to leak after one, two years.Cement plasmoid material (containing Portland cement, superfine cement, wet-milling cement, silica flour etc.) Portland cement plasmoid material low price, wide material sources, nontoxic, pollution-free, weather resistance is better, but intensity is on the low side, can not inject fine sand layer; Superfine cement plasmoid material intensity height, good endurance can inject fine sand layer, but price is higher.Cement class slurry adopts single single fluid grouting form that is at present.
It is a kind of that polymer slurry material is that external at present institute adopts, the intensity height, and good endurance, the property annotated is good, and it is very high, toxic to carry on a shoulder pole price, contaminate environment, much countries have banned use of, use two fluid grouting instead.
Summary of the invention
The purpose of this invention is to provide a kind of cement is the two-shot grouting material of base material, realizes nontoxic, firm, durable and cheap characteristics under the prerequisite that guarantees flowability, perviousness, rapid hardening time adjustability.
This dual-liquid slip-casting material comprises two groups of dry powder mixing materials, and a kind of is to do base material with silicate cement or ultra-fine silicate cement, and another kind is done base material with aluminosulfate cement or ultra-fine aluminosulfate cement.Two kinds of base materials add joins different retardant, flocculation agent, water reducer, setting accelerator, mineral filler and gypsum and two kinds of mixing material A of Wingdale constitutional chemistry performance height complementary and B.In use, two kinds of powder A and B are added water respectively stir into slurries, each can keep good flowability in comfortable two hours; When injecting the stratum, two slurries are meeting by the Grouting Pipe end of two slurry perfusion equipments and thorough mixing.The gel time of mixed serum can adjusted the ratio of two kinds of mixing materials according to construction requirement, realize at an easy rate between tens seconds to several hours adjustable, setting and harden generation intensity rapidly behind the slurries gel.
Draw according to repeatedly experiment the present invention that the weight percent of mixing material A and mixing material B is respectively in the following prescription particularly: mixing material A: aluminosulfate cement: 30%～98.1%, retardant citric acid: 0.1%～0.5%, flocculation agent polyacrylamide: 0%～0.8%, water reducer FDN:0.6%～1.5% mineral filler flyash: 0～69.1%, mixing material B: silicate cement is: 20%～88%, terra alba: 6%～15%, flocculation agent UWB: 0%～0.7%, setting accelerator Quilonum Retard: 0.4%～1.0%, water reducer FDN:0.5%～1.3%, lime: 2.0%-5.0%, mineral filler flyash: 0%-70.8%.
Adopt above prescription to carry out one day intensity of two slurry pouring constructions and can reach more than 5 times of other cement based injecting paste materials.This slurries setting percentage does not exist corrosion and disintegration problem up near 100% underground, so good endurance, thereby and can the various ion hostile environments of stripping.This material is owing to be added with special admixture, so soft formations such as water-retentivity and the property annotated are good, easily form network-like slurry arteries and veins in the stratum, fix the sand to adding, soil are very favourable.General gel time is fast is used for leading water blockoff before the Underground Engineering Excavation, and the soft formation that is used for that gel time is long is reinforced.Because that adopts among the present invention is the Portland cement raw material, its cost is low, nontoxic, can also utilize the industrial residue of flyash and slag powders one class in large quantities, thereby according to significant environmental benefit is arranged.
Embodiment
Key of the present invention is by the complementary characteristic of aluminosulfate cement and silicate cement chemical property, and realized allocating outside two slurries under the allotment of multinomial admixture, the processing step that injects synchronously, and finish rapid hardening fast according to having, swollenly rise, early strong performance.The concrete substitute that adopts of aluminosulfate cement is a quick hardening sulphoaluminate cement, or fast hard iron aluminate cement, or the expansion aluminosulfate cement, or expansion ferro-aluminate cement, or low-alkalinity sulphoaluminate cement, or the chamotte powder of above-mentioned cement, or the powder of above-mentioned cement after grog grinds.
Experimental results show that can also with the aluminosulfate cement among the mixing material A with aluminate cement substitute, the retardant citric acid substitutes with boric acid, this moment, the weight percent of mixed powder condensation material A and mixing material B was respectively:
Materials A: aluminate cement: 60%～90%, retardant boric acid: 0.3%～0.6%, the flocculation agent polyacrylamide: 0.2%～0.7%, water reducer FDN:1.2%-1.6%, mineral filler slag powders: 7.4%-38.3%.Material B: silicate cement is: 25%～55%, and terra alba: 15%～20%, flocculation agent UWB: 0.6%～0.7%, the setting accelerator lithium chloride: 0.8%～1.0%, mineral filler slag powders: 34%-56.6%, lime: 1.15%-3.0%.
Provide the embodiment of the weight percentages of mixing material A and mixing material B below:
| The embodiment numbering | Cement | Terra alba | Retardant | Flocculation agent | Water reducer | Other organic powder | Setting accelerator | Lime | ||||||||
| Aluminosulfate cement | Aluminate cement | Silicate cement | Boric acid | Citric acid | UWB | Polyacrylamide | FDN | SM | Flyash | Slag powders | Lithium chloride | Quilonum Retard | ||||
| 1 | A1 | 98.1 | 0.5 | 0 | 0.2 | 1.2 | 0 | |||||||||
| B1 | 20.0 | 6.0 | 0 | 0.3 | 0.5 | 70.8 | 0.4 | 2.0 | ||||||||
| 2 | A2 | 90.0 | 0.4 | 0 | 0.8 | 1.5 | 7.3 | |||||||||
| B2 | 30.0 | 15.0 | 0 | 0.8 | 0.8 | 47.7 | 0.7 | 5.0 | ||||||||
| 3 | A3 | 85 | 0.35 | 0 | 0.75 | 1.2 | 12.6 | |||||||||
| B3 | 40.0 | 20.0 | 0 | 0.7 | 1.3 | 34.0 | 1.0 | 3.0 | ||||||||
| 4 | A4 | 55.0 | 0.2 | 0.7 | 0 | 1.1 | 43.0 | |||||||||
| B4 | 60.0 | 15.0 | 0.7 | 0 | 1.1 | 20.6 | 0.6 | 2.0 | ||||||||
| 5 | A5 | 40 | 0.2 | 0.8 | 0 | 1.0 | 58.0 | |||||||||
| B5 | 80.0 | 10.0 | 0.5 | 0 | 0.8 | 6.2 | 0.5 | 2.0 | ||||||||
| 6 | A6 | 30.0 | 0.1 | 0.2 | 0 | 0.6 | 69.1 | |||||||||
| B6 | 88.0 | 8.8 | 0.3 | 0 | 0.5 | 0 | 0.4 | 2.0 | ||||||||
| 7 | A7 | 90 | 0.6 | 0.4 | 1.6 | 7.4 | ||||||||||
| B7 | 25 | 15 | 0.6 | 0.5 | 56.6 | 0.8 | 1.5 | |||||||||
| 8 | A8 | 60 | 0.3 | 0.2 | 1.2 | 38.3 | ||||||||||
| B8 | 55 | 18 | 0.75 | 1.5 | 22.7 | 0.9 | 1.15 | |||||||||
| 9 | A9 | 85.0 | 0.5 | 0.7 | 1.4 | 12.4 | ||||||||||
| B9 | 40.0 | 20.0 | 0.7 | 1.3 | 34.0 | 1.0 | 3.0 | |||||||||
Retardant citric acid in the mixing material A component is used tartrate, or Sunmorl N 60S, or calcium lignin sulphonate, or oxalic acid is alternative, can produce essentially identical effect.
Flocculation agent polyacrylamide among the mixing material A and the flocculation agent UWB product alternative each other among the mixing material B.
Water reducer FDN can adopt water reducer SM to substitute in mixing material A and the mixing material B component.
Mineral filler flyash in mixing material A and the mixing material B component is to use slag powders, or limestone powder, or silica flour substitutes.
Water reducer FDN employing SM in mixing material A and the mixing material B component or naphthalene water reducer or melamine system water reducer or fatty acid series water reducer or poly carboxylic acid series water reducer substitute.
The setting accelerator Quilonum Retard adopts lithium chloride to substitute in the mixing material B component.
Flocculation agent UWB, water reducer FDN and SM are the trade name of cement additive commonly used in the construction work, all have specialized factory to produce and the market public offering.
Mixing material A and mixing material B combine and become double mortar pouring material.During construction, can be according to the incidental proportioning test reference data of concrete product type, adopt mixing material A and mixing material B from 1: 4-4: different group modes forms two slurries of different effective concentration between 1, realized between the presetting period was from tens seconds to several hours adjustablely at an easy rate, and adapt to different engineering conditions and different geological states the ground requirement of slurries gel post-hardening intensity.Overcome the shortcoming of prior art, reached convenient, practicality, cheapness, the effect of environmental protection.
Claims (9)
1, a kind of cement-base dual-liquid slip-casting material is formed by adding the two kinds of dry powder mixing material A and the mixing material B that form the slip casting biliquid behind the water, it is characterized in that the weight percent of mixing material A and mixing material B is respectively:
Mixing material A: aluminosulfate cement: 30%～98.1%, the retardant citric acid: 0.1%～0.5%, the flocculation agent polyacrylamide: 0%～0.8%, water reducer FDN:0.6%～1.5% mineral filler flyash: 0～69.1%,
Mixing material B: silicate cement is: 20%～88%, and terra alba: 6%～15%, flocculation agent UWB: 0%～0.7%, setting accelerator Quilonum Retard: 0.4%～1.0%, water reducer FDN:0.5%～1.3%, lime: 2.0%-5.0%, mineral filler flyash: 0%-70.8%.
2, cement-base dual-liquid slip-casting material according to claim 1, it is characterized in that among the mixing material A aluminosulfate cement with aluminate cement substitute, the retardant citric acid substitutes with boric acid, this moment, the weight percent of mixed powder condensation material A and mixing material B was respectively:
Materials A: aluminate cement: 60%～90%, retardant boric acid: 0.3%～0.6%, the flocculation agent polyacrylamide: 0.2%～0.7%, water reducer FDN:1.2%-1.6%, mineral filler slag powders: 7.4%-38.3%,
Material B: silicate cement is: 25%～55%, and terra alba: 15%～20%, flocculation agent UWB: 0.6%～0.7%, the setting accelerator lithium chloride: 0.8%～1.0%, mineral filler slag powders: 34%-56.6%, lime: 1.15%-3.0%.
3, cement-base dual-liquid slip-casting material according to claim 1, it is characterized in that the mixing material aluminosulfate cement adopts quick hardening sulphoaluminate cement to substitute, or fast hard iron aluminate cement substitutes, or the expansion aluminosulfate cement substitutes, or the expansion ferro-aluminate cement substitutes, or low-alkalinity sulphoaluminate cement is alternative, or adopts the chamotte powder of above-mentioned cement, or the powder of above-mentioned cement after grog grinds substitutes.
4, cement-base dual-liquid slip-casting material according to claim 1 is characterized in that the retardant citric acid of mixing material A adopts tartrate, or Sunmorl N 60S, or calcium lignin sulphonate, or oxalic acid substitutes.
5, cement-base dual-liquid slip-casting material according to claim 1 is characterized in that flocculation agent polyacrylamide among the mixing material A and the flocculation agent UWB product alternative each other among the mixing material B.
6, cement-base dual-liquid slip-casting material according to claim 1 is characterized in that the water reducer FDN among mixing material A and the mixing material B substitutes with water reducer SM.
7, cement-base dual-liquid slip-casting material according to claim 1 is characterized in that the mineral filler flyash among mixing material A and the mixing material B is to use slag powders, or limestone powder, or silica flour substitutes.
8, cement-base dual-liquid slip-casting material according to claim 1 is characterized in that water reducer FDN among mixing material A and the mixing material B adopts naphthalene water reducer or melamine system water reducer or fatty acid series water reducer or poly carboxylic acid series water reducer to substitute.
9, cement-base dual-liquid slip-casting material according to claim 1 is characterized in that the setting accelerator Quilonum Retard among the mixing material B adopts lithium chloride to substitute.
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