CN107673711A - A kind of ground gravity flowing levelling mortar prepared with Machine-made Sand and preparation method thereof - Google Patents
A kind of ground gravity flowing levelling mortar prepared with Machine-made Sand and preparation method thereof Download PDFInfo
- Publication number
- CN107673711A CN107673711A CN201711030296.1A CN201711030296A CN107673711A CN 107673711 A CN107673711 A CN 107673711A CN 201711030296 A CN201711030296 A CN 201711030296A CN 107673711 A CN107673711 A CN 107673711A
- Authority
- CN
- China
- Prior art keywords
- machine
- made sand
- sand
- gravity flowing
- levelling mortar
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- 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.)
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Classifications
-
- 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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- 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
- C04B2111/60—Flooring materials
- C04B2111/62—Self-levelling compositions
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The present invention relates to a kind of ground gravity flowing levelling mortar prepared with Machine-made Sand；It is made up of by weight percentage following raw materials according：Machine-made Sand 40 50%, sulphate aluminium cement 35 40%, flyash 8 15%, inert filler 3 8%, additive 1.2 1.8%.The method for making the ground gravity flowing levelling mortar comprises the following steps：It is standby to choose the sand that the particle diameter after the screening of dry-type sand-making system production is 0 0.6mm；Machine-made Sand, sulphate aluminium cement, flyash, inert filler, additive are mixed by proportioning, the ground gravity flowing levelling mortar of Machine-made Sand preparation is obtained after dry-mixed 3 5min.This ground gravity flowing levelling mortar need not pre-process using Machine-made Sand as fine aggregate in production process to Machine-made Sand, and the Machine-made Sand after the screening of dry-type sand-making system production can be used directly, simple production process；Product of the present invention adds after the abundant mix of water that self drainage is good, do not settle, bleeding, uniformity be not good, morning is strong, the performance such as high-strength in proportion.
Description
Technical field
The present invention relates to building material technical field, more particularly to a kind of ground gravity flowing levelling mortar prepared with Machine-made Sand
And preparation method thereof.
Background technology
Ground is used for ground with gravity flowing levelling mortar by what cement-based gelling material, fine aggregate, filler and additive formed
The levelling new material of making, adding after water mix has good fluidity, is easy to that construction, levelling speed is fast, time saving, leveling layer thickness
Thin, the advantages that ground flat degree is high, intensity is high, can effectively solve poor flatness caused by traditional earth material is plastered, dusting
Phenomena such as, high request of the novel building to basic unit is greatly met, and be applied to the engineerings such as repairing and the finishing on ground.
The fine aggregate in the gravity flowing levelling mortar in China mostly uses natural river sand and quartz sand at present, at present quartz sand price
Costliness, and river sand belongs to non-renewable resources, unrestrictedly exploitation causes petering out and serious environment for river sand resource
Problem.Therefore the consumption of natural river sand how is reduced, is become certainly with the fine aggregate substitution natural river sand that other cost performances are higher
The focus of levelling mortar research.
Machine-made Sand at home and abroad has decades history, technically ripe, can substitute natural river sand completely and use
In engineering construction, and ecological benefits are very notable, especially meet the Implement of sustainable development strategic requirement, and Machine-made Sand is and
As the main sand source of our building material industries, it is imperative to greatly develop Machine-made Sand.Gravity flowing levelling mortar is carried out according to Machine-made Sand
Production, not only contribute to alleviate the coyoting abuse to deficient river sand resource, and be advantageous to hair of the Machine-made Sand in building material industry
Exhibition, accomplishes to make the best use of everything, energy-saving and emission-reduction.But following defect be present in current technology, i.e., be difficult in gravity flowing levelling mortar production big
The problem of volume utilizes, causes the utilization rate of current Machine-made Sand low.
The content of the invention
To solve problems of the prior art, primary and foremost purpose of the invention is to provide a kind of ground prepared with Machine-made Sand
Face gravity flowing levelling mortar；The fine aggregate that the present invention adds is entirely Machine-made Sand, and Machine-made Sand need not be located in advance in production process
Reason, cheap so as to obtain a kind of cost, good fluidity, uniformity are high, ground gravity flowing levelling mortar.
To achieve the above object, the present invention proposes a kind of ground gravity flowing levelling mortar prepared with Machine-made Sand；By following original
Material forms by weight percentage：Machine-made Sand 40-50%, sulphate aluminium cement 35-40%, flyash 8-15%, inert filler 3-8%,
Additive 1.2-1.8%.
The Machine-made Sand is the sand that the particle diameter of dry-type sand-making system production is 0-0.6mm.
The MB values of the Machine-made Sand<1.4, moisture content<0.5%, content of stone powder 3-6%.
The sulphate aluminium cement is quick hardening sulphoaluminate cement, and the strength grade of quick hardening sulphoaluminate cement is 42.5,
It is relatively low and without tricalcium silicate that the mineralogical composition of quick hardening sulphoaluminate cement includes dicalcium silicate, calcium sulphoaluminate content.
The flyash grade is preferablyLevel；The inert filler is agstone.
The additive includes polycarboxylate water-reducer dry powder, rubber powder, defoamer, plasticity-maintaining agent and water-loss reducer.
The additive raw material is by weight percentage：Polycarboxylate water-reducer dry powder 0.1-0.12%, rubber powder 0.8-1.2%,
Defoamer 0.01-0.03%, plasticity-maintaining agent 0.1-0.3%, water-loss reducer 0.03-0.06%.
The polycarboxylate water-reducer dry powder water-reducing rate is 30-40%, and defoamer is organic silicon, plasticity-maintaining agent be tartaric acid or
Citric acid, water-loss reducer are low-viscosity cellulose ether, and rubber powder is the polymer dispersion powder again of ethylene/vinyl acetate copolymerization.
The ground that present mechanism sand is prepared is with the preparation method of gravity flowing levelling mortar：
1）Machine-made Sand processing：It is standby to choose the sand that the particle diameter after the screening of dry-type sand-making system production is 0-0.6mm；
2）Machine-made Sand, sulphate aluminium cement, flyash, inert filler, additive are mixed by proportioning, after dry-mixed 3-5min
Obtain the ground gravity flowing levelling mortar of Machine-made Sand preparation.
Beneficial effect：
The ground gravity flowing levelling mortar of the present invention, by various performance tests and test, has following features and function：
1) good fluidity, uniformity are high.Only in proportion water need to be added to stir during use, stand not bleeding, aggregate
Do not settle, uniformity is good, and initial flow degree is 140-160mm, and 20min fluidities are 130-150mm.
2) morning is strong, high-strength, cohesive force is high.24h rupture strengths 3-5MPa, 24h compression strength 12-18MPa, stretch-bonded are strong
Degree >=1.0MPa.
3) 100% Machine-made Sand is used as fine aggregate.Product of the present invention is directly taken using the Machine-made Sand of dry-type sand-making system production
The production of gravity flowing levelling mortar is carried out for the natural river sand after drying and processing, Machine-made Sand is solved and is difficult in gravity flowing levelling mortar production
The problem of large dosage utilizes, the gravity flowing levelling mortar of production can be widely applied to large supermarket, market, parking lot, factory floor, storehouse
The ground surface consolidation engineering such as storehouse.Not only contribute to alleviate the coyoting abuse to deficient river sand resource, and be advantageous to Machine-made Sand and building
The development of material industry, accomplish to make the best use of everything, energy-saving and emission-reduction.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment one：A kind of ground gravity flowing levelling mortar prepared with Machine-made Sand
This ground gravity flowing levelling mortar is by Machine-made Sand, quick hardening sulphoaluminate cement, flyash, inert filler, additive（Polycarboxylic acids
Water reducer dry powder, rubber powder, defoamer, plasticity-maintaining agent, water-loss reducer）Mix, the proportioning of various materials is：
Machine-made Sand 45%
Quick hardening sulphoaluminate cement 38%
Flyash 8%
Inert filler 7.63%
Polycarboxylate water-reducer 0.10%
Rubber powder 1.0%
Defoamer 0.02%
Plasticity-maintaining agent 0.2%
Water-loss reducer 0.05%
Gravity flowing levelling mortar obtained by the present embodiment directly adds water to can be used after stirring, and its reclaimed water material weight ratio is 0.25.
The compound use of above-mentioned material so that gravity flowing levelling mortar have self drainage is good, do not settle, not bleeding, uniformity it is good,
The performance such as early strong, high-strength.
Embodiment two：A kind of ground gravity flowing levelling mortar prepared with Machine-made Sand
No longer described with the something in common of example one, difference is as follows：
Machine-made Sand 40%
Quick hardening sulphoaluminate cement 40%
Flyash 15%
Inert filler 3.71
Polycarboxylate water-reducer 0.12%
Rubber powder 0.8%
Defoamer 0.01%
Plasticity-maintaining agent 0.3%
Water-loss reducer 0.04%
Gravity flowing levelling mortar obtained by the present embodiment directly adds water to can be used after stirring, and its reclaimed water material weight ratio is 0.26.
Embodiment three：A kind of high performance no-contraction cement base grouting material prepared with Machine-made Sand
No longer described with the something in common of example one, difference is as follows：
Machine-made Sand 50%
Quick hardening sulphoaluminate cement 35%
Flyash 10%
Inert filler 3.51%
Polycarboxylate water-reducer 0.10%
Rubber powder 1.2%
Defoamer 0.03%
Plasticity-maintaining agent 0.10%
Water-loss reducer 0.06%
Gravity flowing levelling mortar obtained by the present embodiment directly adds water to can be used after stirring, and its reclaimed water material weight ratio is 0.25.
Each raw material for implementing product is formed referring to table 1 above, and performance indications are referring to table 2.
The percentage by weight composition of raw material in 1 each embodiment of table
The performance indications of each embodiment product of table 2
Ground gravity flowing levelling mortar of the present invention need not pre-process using Machine-made Sand as fine aggregate in production process to Machine-made Sand,
Machine-made Sand after the screening of dry-type sand-making system production can be used directly, simple production process；Product of the present invention adds water in proportion
Self drainage is good after abundant mix, do not settle, bleeding, uniformity be not good, morning is strong, the performance such as high-strength.Make full use of industry byproduct
Flyash, there is good economic benefit and social benefit.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
- A kind of 1. ground gravity flowing levelling mortar prepared with Machine-made Sand；It is characterized in that：By following raw materials according group by weight percentage Into：Machine-made Sand 40-50%, sulphate aluminium cement 35-40%, flyash 8-15%, inert filler 3-8%, additive 1.2-1.8%.
- 2. ground gravity flowing levelling mortar according to claim 1；It is characterized in that：The Machine-made Sand is dry-type sand-making system The particle diameter of production is 0-0.6mm sand.
- 3. ground gravity flowing levelling mortar according to claim 2；It is characterized in that：The MB values of the Machine-made Sand<1.4, contain Water rate<0.5%, content of stone powder 3-6%.
- 4. ground gravity flowing levelling mortar according to claim 1；It is characterized in that：The sulphate aluminium cement is fast hard sulphur Aluminate cement, the strength grade of quick hardening sulphoaluminate cement is 42.5, and the mineralogical composition of quick hardening sulphoaluminate cement includes silicon Sour dicalcium, calcium sulphoaluminate content are relatively low and without tricalcium silicate.
- 5. ground gravity flowing levelling mortar according to claim 1；It is characterized in that：The flyash grade is preferablyLevel； The inert filler is agstone.
- 6. ground gravity flowing levelling mortar according to claim 1；It is characterized in that：The additive includes polycarboxylic acids diminishing Agent dry powder, rubber powder, defoamer, plasticity-maintaining agent and water-loss reducer.
- 7. ground gravity flowing levelling mortar according to claim 1；It is characterized in that：Additive raw material percentage by weight Than meter：Polycarboxylate water-reducer dry powder 0.1-0.12%, rubber powder 0.8-1.2%, defoamer 0.01-0.03%, plasticity-maintaining agent 0.1-0.3%, Water-loss reducer 0.03-0.06%.
- 8. ground gravity flowing levelling mortar according to claim 7；It is characterized in that：The polycarboxylate water-reducer dry powder diminishing Rate is 30-40%, and defoamer is organic silicon, and plasticity-maintaining agent is tartaric acid or citric acid, and water-loss reducer is low-viscosity cellulose ether, glue Powder is the polymer dispersion powder again of ethylene/vinyl acetate copolymerization.
- 9. the preparation of the ground gravity flowing levelling mortar prepared with Machine-made Sand according to claim 1 to 8 any claim Method is：1）Machine-made Sand processing：It is standby to choose the sand that the particle diameter after the screening of dry-type sand-making system production is 0-0.6mm；2）Machine-made Sand, sulphate aluminium cement, flyash, inert filler, additive are mixed by proportioning, after dry-mixed 3-5min Obtain the ground gravity flowing levelling mortar of Machine-made Sand preparation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030296.1A CN107673711A (en) | 2017-10-30 | 2017-10-30 | A kind of ground gravity flowing levelling mortar prepared with Machine-made Sand and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711030296.1A CN107673711A (en) | 2017-10-30 | 2017-10-30 | A kind of ground gravity flowing levelling mortar prepared with Machine-made Sand and preparation method thereof |
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| CN107673711A true CN107673711A (en) | 2018-02-09 |
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ID=61142841
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711030296.1A Pending CN107673711A (en) | 2017-10-30 | 2017-10-30 | A kind of ground gravity flowing levelling mortar prepared with Machine-made Sand and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109836106A (en) * | 2019-03-06 | 2019-06-04 | 唐山北极熊建材有限公司 | Fast hard cracking resistance cement-based self-leveling mortar powder, slurry, mortar and preparation method |
| CN111039622A (en) * | 2019-12-23 | 2020-04-21 | 杭州墨泰科技股份有限公司 | Rapid-setting self-leveling mortar |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265253A (en) * | 2013-05-08 | 2013-08-28 | 沈阳建筑大学 | High-performance grouting material for prefabricated building construction, and preparation method thereof |
| CN106747138A (en) * | 2016-12-07 | 2017-05-31 | 华砂砂浆有限责任公司 | A kind of quick leveling mortar in ground |
-
2017
- 2017-10-30 CN CN201711030296.1A patent/CN107673711A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265253A (en) * | 2013-05-08 | 2013-08-28 | 沈阳建筑大学 | High-performance grouting material for prefabricated building construction, and preparation method thereof |
| CN106747138A (en) * | 2016-12-07 | 2017-05-31 | 华砂砂浆有限责任公司 | A kind of quick leveling mortar in ground |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109836106A (en) * | 2019-03-06 | 2019-06-04 | 唐山北极熊建材有限公司 | Fast hard cracking resistance cement-based self-leveling mortar powder, slurry, mortar and preparation method |
| CN111039622A (en) * | 2019-12-23 | 2020-04-21 | 杭州墨泰科技股份有限公司 | Rapid-setting self-leveling mortar |
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Application publication date: 20180209 |
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