CN104529358A - High-admixture low-cost grouting material and preparation method thereof - Google Patents
High-admixture low-cost grouting material and preparation method thereof Download PDFInfo
- Publication number
- CN104529358A CN104529358A CN201410705066.0A CN201410705066A CN104529358A CN 104529358 A CN104529358 A CN 104529358A CN 201410705066 A CN201410705066 A CN 201410705066A CN 104529358 A CN104529358 A CN 104529358A
- Authority
- CN
- China
- Prior art keywords
- weight parts
- weight
- weight part
- parts
- defoamer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
The invention relates to a high-admixture low-cost grouting material which comprises the following components: 16.0-17.2 parts by weight of sulphoaluminate cement, 4.0-5.1 parts by weight of aluminate cement, 3.0-3.5 parts by weight of desulfurization gypsum, 11.2-14.0 parts by weight of fly ash, 2.4-2.9 parts by weight of a mineral powder, 0.30-0.34 part by weight of a naphthalene-based high-efficiency water reducing agent, 0.12-0.18 part by weight of borax, 0.03-0.06 part by weight of sodium tripolyphosphate, 0.04-0.08 part by weight of a defoaming agent, and 56.6-62.9 parts by weight of natural medium sand. The low cost and high performance of the grouting material are achieved, the initial fluidity reaches 370 mm, the 30 min fluidity has no loss, the appearance quality is good, the 1d compressive strength reaches 45.5 MPa, the later strength is steadily increased, the erosion resistance is good, and the grouting material has good micro expansion performance.
Description
Technical field
The present invention relates to a kind of injection material, particularly relate to one and can be used for the fields such as emergency dealing, engineering repairing, building reinforce transformation, also can be used as the environment-friendly type injection material of the high adulterant of ground self-leveling mortar use, end cement mortar rate, low cost.
Background technology
Along with the progress of society and the development of science and technology, environmental protection and energy saving become the two principal themes of world today's development.And the toxicity of chemical grouting material and problem of environmental pollution and conventional inorganic injection material can not meet engineering demand ties rich engineering technical personnel and researchist always.
At present, the unit of the serial high-strength shrinkage-free material of research is a lot of both at home and abroad, and its research contents mainly concentrates on the compound aspect of special cement and silicate cement gypsum, its performance does not have breakthrough yet, and production cost is high, unstable properties, hinders widely using of injection material.Under multiple hazardous condition buildings reinforcing engineering in, generally there is the duration short, require that reinforcement material reaches higher even very high intensity in a short period of time and has good workability, weather resistance and overall homogeneity, and traditional injection material is difficult to meet above-mentioned requirements simultaneously.And this low cost of the present invention, high-performance environmentally-friendly type injection material has just just in time catered to the demand in market, the high adulterant adopted, low cement mortar rate is successfully applied in sulplo-aluminate-aluminate-gypsum three-component compound system gelling material, this environment-friendly type injection material can meet its performance requriements (be exactly total the gelling material amount of the substitution amount of so-called adjustment adulterant is constant according to the needs of different engineering by the substitution amount and cement mortar rate adjusting adulterant, the consumption of increase and decrease flyash and breeze, mainly regulate the intensity of this injection material different larval instar, and other performances and production cost, the adjustment reason of cement mortar rate and adulterant similar, in such as Practical Project, 1d, 28d ultimate compression strength requires that comparatively standard is low, just can by suitably increasing the substitution amount of adulterant or reducing cement mortar rate, or both carry out simultaneously.), for the extensive popularization of environment-friendly type injection material provides technical support.
Summary of the invention
High for overcoming conventional grout material produce cost, the shortcoming of unstable properties, the invention provides the injection material of a kind of low cost, high-performance, environment-friendly type.
For reaching above-mentioned purpose, a kind of high adulterant low cost injection material of the present invention, containing, for example lower feed composition:
Aluminosulfate cement: 16.0 ~ 17.2 weight parts; Aluminate cement: 4.0 ~ 5.1 weight parts; Desulfurated plaster: 3.0 ~ 3.5 weight parts; Flyash: 11.2 ~ 14.0 weight parts; Breeze: 2.4 ~ 2.9 weight parts; Naphthalene series high-efficiency water-reducing agent: 0.30 ~ 0.34 weight part; Borax: 0.12 ~ 0.18 weight part; Tripoly phosphate sodium STPP: 0.03 ~ 0.06 weight part; Defoamer: 0.04 ~ 0.08 weight part; Nature medium sand: 56.6 ~ 62.9 weight parts.
Further preferably, injection material of the present invention, containing, for example lower feed composition: aluminosulfate cement: 16.0 weight parts; Aluminate cement: 4.0 weight parts; Desulfurated plaster: 3.0 weight parts; Flyash: 11.2 weight parts; Breeze: 2.4 weight parts; Naphthalene series high-efficiency water-reducing agent: 0.30 weight part; Borax: 0.12 weight part; Tripoly phosphate sodium STPP: 0.03 weight part; Defoamer: 0.04 weight part; Nature medium sand: 62.9 weight parts.
Or, preferably containing, for example lower feed composition: aluminosulfate cement: 16.4 weight parts; Aluminate cement: 4.2 weight parts; Desulfurated plaster: 3.1 weight parts; Flyash: 12.8 weight parts; Breeze: 2.5 weight parts; Naphthalene series high-efficiency water-reducing agent: 0.31 weight part; Borax: 0.14 weight part; Tripoly phosphate sodium STPP: 0.03 weight part; Defoamer: 0.05 weight part; Nature medium sand: 60.5 weight parts.
Or, preferably containing, for example lower feed composition: aluminosulfate cement: 16.8 weight parts; Aluminate cement: 4.6 weight parts; Desulfurated plaster: 3.2 weight parts; Flyash: 13.6 weight parts; Breeze: 2.8 weight parts; Naphthalene series high-efficiency water-reducing agent: 0.32 weight part; Borax: 0.16 weight part; Tripoly phosphate sodium STPP: 0.04 weight part; Defoamer: 0.06 weight part; Nature medium sand: 58.4 weight parts.
Or, preferably containing, for example lower feed composition: aluminosulfate cement: 17.2 weight parts; Aluminate cement: 5.1 weight parts; Desulfurated plaster: 3.5 weight parts; Flyash: 14.0 weight parts; Breeze: 2.9 weight parts; Naphthalene series high-efficiency water-reducing agent: 0.34 weight part; Borax: 0.18 weight part; Tripoly phosphate sodium STPP: 0.06 weight part; Defoamer: 0.08 weight part; Nature medium sand: 56.6 weight parts.
Above-mentioned each component is commercially available, all obtains by buying.Wherein, defoamer can be the various defoamers that this area is commonly used, and the present invention mainly refers to polyethers defoamer or silicone antifoam agent, preferred, polyethers defoamer of the present invention, and because after its perfusion, visual appearance is good, defoaming effect is obvious.
Injection material of the present invention, wherein said nature medium sand is the nature medium sand crossing 5mm sieve after drying, fineness modulus >=2.5.
The invention still further relates to the preparation method of above-mentioned injection material, according to said ratio, each raw material is weighed up, first add nature medium sand, add naphthalene series high-efficiency water-reducing agent, borax, tripoly phosphate sodium STPP and defoamer again, finally add aluminosulfate cement, aluminate cement, desulfurated plaster, flyash and breeze, stir through mixer, to obtain final product.Add water during use and stir, ratio of water to material is 0.13 ~ 0.17.
The present invention is directed to that conventional grout material cost is high, the feature of poor-performing, select suitable raw material and weight proportion, namely adopt high adulterant, low cement mortar rate to prepare injection material, reach the high performance of injection material.So-called high adulterant refers to that the ratio that flyash and breeze total amount account for total gelling material is about 40%, low cement mortar rate (cement mortar rate is exactly the ratio of material beyond desanding and sand) is main is 1:1 ~ 1:0.67 according to the cement mortar rate of conventional grout material, and cement mortar rate is 1:1.3 ~ 1:1.7 in the present invention, this just significantly reduces production cost.
Borax and tripoly phosphate sodium STPP compound use, effectively extend this injection material time of coagulation, reach the requirement to injection material time of coagulation in standard, operable time is controlled at zone of reasonableness.Aluminosulfate cement-aluminate cement-gypsum three-component compound system serves main excitation and microdilatancy effect to adulterant.Borax and tripoly phosphate sodium STPP compound use serve the adaptability improving complex cementitious system and naphthalene series high-efficiency water-reducing agent, improve the initial flow degree of injection material, ensured 30min degree of mobilization through time free of losses.
The invention has the advantages that and adopt large dosage adulterant compound, coordination technique replacement aluminosulfate cement-aluminate cement-gypsum three-component compound system gelling material and low cement mortar rate technology, achieve the low cost of injection material, high performance, material cost per ton is about 300 yuan, and cost is far below conventional grout material.Injection material initial flow degree of the present invention reaches 370mm, the free of losses of 30min degree of mobilization, and visual appearance is good, and 1d ultimate compression strength reaches 45.5MPa, later strength steady-state growth, and resistance to fouling is good, has good microdilatancy performance.Consider from cost performance, conventional grout material cannot reach These parameters.
High adulterant low-cost environment-friendly injection material of the present invention is powder preparation, has and produces simple, nontoxic pollution-free; This high adulterant low-cost environment-friendly injection material is formulated by the natural sand of composite blend while being 40% (replace ternary system gelling material amount), special cement, desulfurated plaster, auxiliary agent and drying, 28d ultimate compression strength can reach more than 75MPa, 90d ultimate compression strength can reach more than 85MPa, later strength not retraction, good endurance, visual appearance is good, and erosion resistance is strong, has microdilatancy performance.Overcome the shortcoming of conventional grout material, improve the quality of common injection material.
Embodiment
Below in conjunction with embodiment and testing data, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Embodiment 1
Accurately take the raw material of following weight: aluminosulfate cement: 16.0kg; Aluminate cement: 4.0kg; Desulfurated plaster: 3.0kg; Flyash: 11.2kg; Breeze: 2.4kg; Naphthalene series high-efficiency water-reducing agent: 0.30kg; Borax: 0.12kg; Tripoly phosphate sodium STPP: 0.03kg; Defoamer: 0.04kg; Nature medium sand: 62.9kg.
First add nature medium sand, then add naphthalene series high-efficiency water-reducing agent, borax, tripoly phosphate sodium STPP and defoamer, finally add aluminosulfate cement, aluminate cement, desulfurated plaster, flyash and breeze, stir through mixer, to obtain final product.
Embodiment 2
Accurately take the raw material of following weight: aluminosulfate cement: 16.4kg; Aluminate cement: 4.2kg; Desulfurated plaster: 3.1kg; Flyash: 12.8kg; Breeze: 2.5kg; Naphthalene series high-efficiency water-reducing agent: 0.31kg; Borax: 0.14kg; Tripoly phosphate sodium STPP: 0.03kg; Defoamer: 0.05kg; Nature medium sand: 60.5kg.
First add nature medium sand, then add naphthalene series high-efficiency water-reducing agent, borax, tripoly phosphate sodium STPP and defoamer, finally add aluminosulfate cement, aluminate cement, desulfurated plaster, flyash and breeze, stir through mixer, to obtain final product.
Embodiment 3
Accurately take the raw material of following weight: aluminosulfate cement: 16.8kg; Aluminate cement: 4.6kg; Desulfurated plaster: 3.2kg; Flyash: 13.6kg; Breeze: 2.8kg; Naphthalene series high-efficiency water-reducing agent: 0.32kg; Borax: 0.16kg; Tripoly phosphate sodium STPP: 0.04kg; Defoamer: 0.06kg; Nature medium sand: 58.4kg.
First add nature medium sand, then add naphthalene series high-efficiency water-reducing agent, borax, tripoly phosphate sodium STPP and defoamer, finally add aluminosulfate cement, aluminate cement, desulfurated plaster, flyash and breeze, stir through mixer, to obtain final product.
Embodiment 4
Accurately take the raw material of following weight: aluminosulfate cement: 17.2kg; Aluminate cement: 5.1kg; Desulfurated plaster: 3.5kg; Flyash: 14.0kg; Breeze: 2.9kg; Naphthalene series high-efficiency water-reducing agent: 0.34kg; Borax: 0.18kg; Tripoly phosphate sodium STPP: 0.06kg; Defoamer: 0.08kg; Nature medium sand: 56.6kg.
First add nature medium sand, then add naphthalene series high-efficiency water-reducing agent, borax, tripoly phosphate sodium STPP and defoamer, finally add aluminosulfate cement, aluminate cement, desulfurated plaster, flyash and breeze, stir through mixer, to obtain final product.
Test example
Detected by industry standard by injection material obtained above, result is as follows:
In upper table, 1 ~ 4 is assays of four embodiments, and tradition refers to the experimental data of conventional grout material.The formula of conventional grout material is: quartz sand 464kg, P.O52.5 cement 450kg, CA-50 aluminate cement 45kg, dihydrate gypsum 36kg, naphthalene series high-efficiency water-reducing agent 5kg, retardant 0.3kg, defoamer: 0.1kg, conventional grout material does not add adulterant, and cement mortar rate is 1:0.87.Current existing injection material price difference is very large, but the product that market value is lower cannot meet the standard-required of " cement-based grouting material " JC/T986-2005 at all, the product that price is higher does not reach performance index of the present invention yet, and starting material production cost of the present invention reduces at least half, there is the very strong market competitiveness.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (8)
1. a high adulterant low cost injection material, is characterized in that, containing, for example lower feed composition:
Aluminosulfate cement: 16.0 ~ 17.2 weight parts;
Aluminate cement: 4.0 ~ 5.1 weight parts;
Desulfurated plaster: 3.0 ~ 3.5 weight parts;
Flyash: 11.2 ~ 14.0 weight parts;
Breeze: 2.4 ~ 2.9 weight parts;
Naphthalene series high-efficiency water-reducing agent: 0.30 ~ 0.34 weight part;
Borax: 0.12 ~ 0.18 weight part;
Tripoly phosphate sodium STPP: 0.03 ~ 0.06 weight part;
Defoamer: 0.04 ~ 0.08 weight part;
Nature medium sand: 56.6 ~ 62.9 weight parts.
2. injection material according to claim 1, is characterized in that, containing, for example lower feed composition:
Aluminosulfate cement: 16.0 weight parts;
Aluminate cement: 4.0 weight parts;
Desulfurated plaster: 3.0 weight parts;
Flyash: 11.2 weight parts;
Breeze: 2.4 weight parts;
Naphthalene series high-efficiency water-reducing agent: 0.30 weight part;
Borax: 0.12 weight part;
Tripoly phosphate sodium STPP: 0.03 weight part;
Defoamer: 0.04 weight part;
Nature medium sand: 62.9 weight parts.
3. injection material according to claim 1, is characterized in that, containing, for example lower feed composition:
Aluminosulfate cement: 16.4 weight parts;
Aluminate cement: 4.2 weight parts;
Desulfurated plaster: 3.1 weight parts;
Flyash: 12.8 weight parts;
Breeze: 2.5 weight parts;
Naphthalene series high-efficiency water-reducing agent: 0.31 weight part;
Borax: 0.14 weight part;
Tripoly phosphate sodium STPP: 0.03 weight part;
Defoamer: 0.05 weight part;
Nature medium sand: 60.5 weight parts.
4. injection material according to claim 1, is characterized in that, containing, for example lower feed composition:
Aluminosulfate cement: 16.8 weight parts;
Aluminate cement: 4.6 weight parts;
Desulfurated plaster: 3.2 weight parts;
Flyash: 13.6 weight parts;
Breeze: 2.8 weight parts;
Naphthalene series high-efficiency water-reducing agent: 0.32 weight part;
Borax: 0.16 weight part;
Tripoly phosphate sodium STPP: 0.04 weight part;
Defoamer: 0.06 weight part;
Nature medium sand: 58.4 weight parts.
5. injection material according to claim 1, is characterized in that, containing, for example lower feed composition:
Aluminosulfate cement: 17.2 weight parts;
Aluminate cement: 5.1 weight parts;
Desulfurated plaster: 3.5 weight parts;
Flyash: 14.0 weight parts;
Breeze: 2.9 weight parts;
Naphthalene series high-efficiency water-reducing agent: 0.34 weight part;
Borax: 0.18 weight part;
Tripoly phosphate sodium STPP: 0.06 weight part;
Defoamer: 0.08 weight part;
Nature medium sand: 56.6 weight parts.
6. injection material according to claim 1, is characterized in that: described defoamer is polyethers defoamer or silicone antifoam agent, preferred, polyethers defoamer.
7. injection material according to claim 1, is characterized in that: described nature medium sand is the nature medium sand crossing 5mm sieve after drying, and fineness modulus controls 2.5 ~ 2.8.
8. prepare the preparation method of the injection material described in any one of claim 1-7, it is characterized in that: according to proportioning described in any one of claim 1-6, each raw material is weighed up, first add nature medium sand, add naphthalene series high-efficiency water-reducing agent, borax, tripoly phosphate sodium STPP and defoamer again, finally add aluminosulfate cement, aluminate cement, desulfurated plaster, flyash and breeze, stir through mixer, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705066.0A CN104529358A (en) | 2014-11-27 | 2014-11-27 | High-admixture low-cost grouting material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705066.0A CN104529358A (en) | 2014-11-27 | 2014-11-27 | High-admixture low-cost grouting material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104529358A true CN104529358A (en) | 2015-04-22 |
Family
ID=52845046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410705066.0A Pending CN104529358A (en) | 2014-11-27 | 2014-11-27 | High-admixture low-cost grouting material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104529358A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220126A (en) * | 2016-08-10 | 2016-12-14 | 佳木斯大学 | A kind of grouting material of foundation stabilization |
| CN107298564A (en) * | 2016-12-02 | 2017-10-27 | 徐州中联混凝土有限公司 | It is a kind of not disperse contraction-free grouting concrete under water |
| CN108191330A (en) * | 2017-12-18 | 2018-06-22 | 固岩科技发展有限公司 | A kind of method of consolidated fill gelling slurry against corrosion in metal mine |
| CN113735537A (en) * | 2021-09-09 | 2021-12-03 | 江苏东交智控科技集团股份有限公司 | Grouting material for pavement and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09249440A (en) * | 1996-03-14 | 1997-09-22 | Denki Kagaku Kogyo Kk | Spraying material and spray working using the same |
| CN101269943A (en) * | 2008-05-12 | 2008-09-24 | 北京东方建宇混凝土科学技术研究院有限公司 | High-strength grout containing superfines and preparing method |
| CN101913840A (en) * | 2010-08-10 | 2010-12-15 | 刘茂平 | Rapid hardening high-strength grouting material |
| CN102249636A (en) * | 2011-05-18 | 2011-11-23 | 江苏名和集团有限公司 | Cement-based shrinkage-free grouting mortar |
| CN102898105A (en) * | 2012-10-11 | 2013-01-30 | 山西省建筑科学研究院 | Inorganic multi-element composite super-high-early grouting material and preparation method thereof |
-
2014
- 2014-11-27 CN CN201410705066.0A patent/CN104529358A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09249440A (en) * | 1996-03-14 | 1997-09-22 | Denki Kagaku Kogyo Kk | Spraying material and spray working using the same |
| CN101269943A (en) * | 2008-05-12 | 2008-09-24 | 北京东方建宇混凝土科学技术研究院有限公司 | High-strength grout containing superfines and preparing method |
| CN101913840A (en) * | 2010-08-10 | 2010-12-15 | 刘茂平 | Rapid hardening high-strength grouting material |
| CN102249636A (en) * | 2011-05-18 | 2011-11-23 | 江苏名和集团有限公司 | Cement-based shrinkage-free grouting mortar |
| CN102898105A (en) * | 2012-10-11 | 2013-01-30 | 山西省建筑科学研究院 | Inorganic multi-element composite super-high-early grouting material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 潘旺林: "《最新建筑材料手册》", 30 April 2014, 安徽科学技术出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106220126A (en) * | 2016-08-10 | 2016-12-14 | 佳木斯大学 | A kind of grouting material of foundation stabilization |
| CN107298564A (en) * | 2016-12-02 | 2017-10-27 | 徐州中联混凝土有限公司 | It is a kind of not disperse contraction-free grouting concrete under water |
| CN108191330A (en) * | 2017-12-18 | 2018-06-22 | 固岩科技发展有限公司 | A kind of method of consolidated fill gelling slurry against corrosion in metal mine |
| CN113735537A (en) * | 2021-09-09 | 2021-12-03 | 江苏东交智控科技集团股份有限公司 | Grouting material for pavement and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108314393A (en) | A kind of low temperature environment bar connecting grouting material and its preparation method and application | |
| CN102718447B (en) | High-performance reinforced mortar suitable for thick-layer spraying and preparation method thereof | |
| CN103803918A (en) | Porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar and using method thereof | |
| CN106242327B (en) | A kind of regenerative micro powder cement mixture and preparation method thereof | |
| CN103332892A (en) | Industrial waste residue dry-mixed mortar | |
| CN103011662A (en) | Alkali-activated high-performance water reducer and preparation method thereof | |
| CN110304872B (en) | Nano modified cement-based underwater non-dispersible material and preparation method thereof | |
| CN103496934A (en) | Phosphogypsum-based surface layer plastering gypsum material and preparation method thereof | |
| CN114163204B (en) | Sand-free gypsum-based self-leveling mortar and preparation method thereof | |
| CN103979901A (en) | A cement-based shrinkage-free grouting material doped with phosphorus slag powder and a using method thereof | |
| CN104072007A (en) | Superfine mineral micro powder grouting agent for duct grouting | |
| CN104529358A (en) | High-admixture low-cost grouting material and preparation method thereof | |
| CN104016609B (en) | One kind prepares the addition of ferronickel slag environment-friendly type active mineral material and excites agent method | |
| CN106587711A (en) | Special additive for self-compacting concretes for concrete pouring in closed space | |
| CN110655375A (en) | Inner wall plastering mortar material, preparation method and application thereof | |
| CN102898105B (en) | Inorganic multi-element composite super-high-early grouting material and preparation method thereof | |
| CN103553515B (en) | A kind of dry-mix being mixed with phosphorus slag powder | |
| CN103253901B (en) | A kind of concrete bridge deck fast spreading mortar and preparation method thereof | |
| CN108164207A (en) | A kind of new concrete | |
| CN105776989A (en) | Novel wet-mixed mortar | |
| CN105330238A (en) | Cement-based waterproof self-leveling material with manufactured sand sieve backing material being all aggregate | |
| CN109704693B (en) | Sulphoaluminate cement-based self-compacting mortar and use method thereof | |
| CN103553509A (en) | Waterproof mortar suitable for high-humidity environment | |
| CN107285718A (en) | A kind of lime base is micro- to shrink grouting material group thing and preparation method thereof | |
| CN104003646B (en) | A kind of dry-mixed mortar water-keeping thickening material and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |