CN109678438A - A kind of polyalcohol cement basis modified mortar - Google Patents

A kind of polyalcohol cement basis modified mortar Download PDF

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Publication number
CN109678438A
CN109678438A CN201910099392.4A CN201910099392A CN109678438A CN 109678438 A CN109678438 A CN 109678438A CN 201910099392 A CN201910099392 A CN 201910099392A CN 109678438 A CN109678438 A CN 109678438A
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CN
China
Prior art keywords
parts
good
cement
mortar
polyalcohol
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.)
Withdrawn
Application number
CN201910099392.4A
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Chinese (zh)
Inventor
刘丰
袁涛
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Suzhou Bailian Energy Polytron Technologies Inc
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Suzhou Bailian Energy Polytron Technologies Inc
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Priority to CN201910099392.4A priority Critical patent/CN109678438A/en
Publication of CN109678438A publication Critical patent/CN109678438A/en
Withdrawn legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/06Aluminous cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of polyalcohol cement basis modified mortars, including the following raw material measured with mass fraction: 200-350 parts of fine sand, 80-140 parts of cement, 20-30 parts of ceramic powder, 15-25 parts of clay, 10-30 parts of rubber powder, 5-15 parts of diatomite, 5-15 parts of graphite powder, 8-20 parts of polymer emulsion, 5-10 parts of basalt fibre, 3-8 parts of polyacrylonitrile, 2-5 parts of water-reducing agent, 1-3 parts of defoaming agent, 2-5 parts of coupling agent, 50-150 parts of water.Structure of the invention intensity is good, good waterproof performance, good toughness, and warping resistance intensity is good, and volume stability is good, and durability is good, and frost resistance is good, and early strong good, not easy to crack, using effect is good.

Description

A kind of polyalcohol cement basis modified mortar
Technical field
The present invention relates to building decoration area, in particular to a kind of polyalcohol cement basis modified mortar.
Background technique
Ordinary mortar is because tensile pressure ratio is low, and dry-shrinkage deformed big, impermeability, crack resistance, poor corrosion resistance, density is big, uses Range is very restricted.With the development of industry, the performance of mortar is proposed further it is necessary to improve the property of cementing material Can, therefore there is polymer mortar.Cement mortar is modified using polymer and is allowed to keeping cement original inorganic When material compression strength, flexural strength, ageing-resistant advantage, increase that organic material cohesive force is big, morphotropism is good, leakproofness is strong The characteristics of, so that the cohesive force of cement mortar, frost resistance and impervious power be made all to be enhanced.However, for cement bonded sand It is also bigger than the brittleness of normal concrete due to lacking aggregate component for slurry, while it also has the limit of normal concrete Therefore how system, obtains cement mortar that is a kind of high-intensitive while being suitble to engineer application and exists if intensity is bigger, brittleness is bigger Certain technical bottleneck needs to add preferable toughening material, to reduce its brittleness.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of polyalcohol cement basis modified mortars, using multiple material Mortar is improved, structural strengthening, it is undesirable to solve existing mortar material cohesive force, frost resistance and impervious power, toughness Difference, the big problem of brittleness.
In order to achieve the above objectives, technical scheme is as follows: a kind of polyalcohol cement basis modified mortar, including with matter Measure the following raw material of number metering:
As a preferred solution of the present invention, the cement is the mixture of aluminate cement and portland cement;Institute The mass ratio for stating aluminate cement and portland cement is 2:1.
As a preferred solution of the present invention, the polymer emulsion is polyacrylate dispersion and ethylene-acetate second Enester copolymer emulsion;The polyacrylate dispersion and the mass ratio of ethylene-vinyl acetate c lotion are 1:1.
As a preferred solution of the present invention, the graphite powder is 500-800 mesh.
As a preferred solution of the present invention, the rubber powder is 300-500 mesh.
As a preferred solution of the present invention, the coupling agent is silane coupling agent.
Through the above technical solutions, the beneficial effect of technical solution of the present invention is: structure of the invention intensity is good, waterproofness Good, good toughness, warping resistance intensity is good, and volume stability is good, and durability is good, and frost resistance is good, early strong good, not easy to crack, uses effect Fruit is good.Ceramic powder is added in the present invention, the intensity after mortar solidifies can be effectively improved, its anti-freezing property is improved, it is close to reduce its Degree, load-bearing property is more preferable, while can be improved the heat insulating effect of mortar, and can play certain cushioning effect;And Rubber powder can be improved the toughness of mortar, play toughening effect, and flexibility improves significantly, simultaneously because ceramic powder is added, The waterproof performance of mortar has certain decrease, and rubber powder can be improved mortar waterproof performance, carries out coordinated with ceramic powder, Furthermore rubber powder helps to improve the endurance quality of mortar, improves wear-resisting property;The bonding that clay can effectively improve mortar is strong Degree, and the bond strength of rubber powder and cement, fine sand is weak, can improve internal porosity, clay plays the role of structural strengthening, And water lock can be played the role of, facilitate the early strength for promoting mortar;Diatomite can aid in raising sand as filler The compression strength of slurry, adhesion strength and barrier performance reduce its shrinking percentage, carry out coordinated with clay;Basalt fibre and Polyacrylonitrile plays the role of mortar early-age shrinkage cracking resistance very positive, hence it is evident that must reduce the contract with dry rate of mortar, improve The impermeability of mortar improves the flexibility of mortar to a certain extent;Specifically, polyacrylonitrile, can improve and newly mix The construction workability of mortar increases water-retaining property, avoids excreting water phenomenon, and polymer mortar can be improved in polyacrylonitrile Flexural strength and flexibility improve the water resistance, salt-resistance, mobile performance of cement mortar, but influence on compressive property little;And Basalt fibre can form network structure inside mortar, have certain promotion to the flexibility of mortar, while can obviously mention The compression strength for rising mortar reduces the contract with dry rate of mortar and improves the anti-freezing property of mortar;Exist on graphite powder surface a large amount of living Property oxygen-containing functional group, can participate in the reaction of hydrated cementitious, improve the interface phase interaction of hydrated cementitious crystal and graphite powder surface Firmly, achieve the effect that toughening, while graphite powder can effectively fill up mortar internal void, reduce porosity, it is strong to improve structure Degree and waterproof performance.Polymer emulsion can sufficiently form a film in cement, especially with polyacrylonitrile and basalt fibre Cooperation is formed using polyacrylonitrile and basalt fibre as the closely knit space web structure of network skeleton, so that in mortar Portion's structure is finer and close, greatly promotes the toughness of mortar, waterproof performance and anti-freezing property.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described, Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the scope of protection of the invention.
Embodiment 1
Present embodiment discloses a kind of polyalcohol cement basis modified mortars, including the following raw material measured with mass fraction:
Embodiment 2
Present embodiment discloses a kind of polyalcohol cement basis modified mortars, including the following raw material measured with mass fraction:
Embodiment 3
Present embodiment discloses a kind of polyalcohol cement basis modified mortars, including the following raw material measured with mass fraction:
Wherein, cement is the mixture of aluminate cement and portland cement;The matter of aluminate cement and portland cement Amount is than being 2:1.After adding water mix hydration reaction occurs for sulphate aluminium cement, very high early strength is generated after hardening, the later period is strong Steady growth is spent, is cooperated with portland cement, makes the early strong good of mortar, freeze proof and waterproof performance is good.Polymer emulsion is poly- third Olefin(e) acid ester lotion and ethylene-vinyl acetate c lotion;Polyacrylate dispersion and ethylene-vinyl acetate c lotion Mass ratio is 1:1.Polyacrylate dispersion promotion with good performance in terms of preventing blending waterproof, ethane-acetic acid ethyenyl ester Copolymer emulsion promotion with good performance in terms of Frost Resistance.
Embodiment 4
Present embodiment discloses a kind of polyalcohol cement basis modified mortars, including the following raw material measured with mass fraction:
Wherein, cement is the mixture of aluminate cement and portland cement;The matter of aluminate cement and portland cement Amount is than being 2:1.After adding water mix hydration reaction occurs for sulphate aluminium cement, very high early strength is generated after hardening, the later period is strong Steady growth is spent, is cooperated with portland cement, makes the early strong good of mortar, freeze proof and waterproof performance is good.Polymer emulsion is poly- third Olefin(e) acid ester lotion and ethylene-vinyl acetate c lotion;Polyacrylate dispersion and ethylene-vinyl acetate c lotion Mass ratio is 1:1.Polyacrylate dispersion promotion with good performance in terms of preventing blending waterproof, ethane-acetic acid ethyenyl ester Copolymer emulsion promotion with good performance in terms of Frost Resistance.
Graphite powder is 500-800 mesh.Rubber powder is 300-500 mesh.Coupling agent is silane coupling agent, is able to ascend in mortar Portion's bond strength.
Embodiment 1-4 is detected, compression strength is both greater than 40MPa, and bend-press ratio is greater than 0.35, and adhesion strength is greater than 4.0MPa, pressure-proof elasticity modulus are less than 10GPa, and water absorption rate is less than 0.4% and shrinking percentage is less than 0.32%, have excellent property Energy.
By above-mentioned specific embodiment, the beneficial effects of the present invention are: structure of the invention intensity is good, good waterproof performance, toughness Good, warping resistance intensity is good, and volume stability is good, and durability is good, and frost resistance is good, and early strong good, not easy to crack, using effect is good.This Ceramic powder is added in invention, the intensity after mortar solidifies can be effectively improved, improve its anti-freezing property, reduce its density, load-bearing Performance is more preferable, while can be improved the heat insulating effect of mortar, and can play certain cushioning effect;And rubber powder energy The toughness for enough improving mortar, plays toughening effect, and flexibility improves significantly, simultaneously because ceramic powder is added, mortar is prevented Aqueous to have certain decrease, rubber powder can be improved mortar waterproof performance, carry out coordinated, this outer rubber with ceramic powder Powder helps to improve the endurance quality of mortar, improves wear-resisting property;Clay can effectively improve the adhesion strength of mortar, and rubber The bond strength of powder and cement, fine sand is weak, can improve internal porosity, and clay plays the role of structural strengthening, and can Play the role of water lock, facilitates the early strength for promoting mortar;Diatomite can aid in the resistance to compression for improving mortar as filler Intensity, adhesion strength and barrier performance reduce its shrinking percentage, carry out coordinated with clay;Basalt fibre and polyacrylonitrile Fiber plays the role of mortar early-age shrinkage cracking resistance very positive, hence it is evident that the contract with dry rate that must reduce mortar improves mortar Impermeability improves the flexibility of mortar to a certain extent;Specifically, polyacrylonitrile, can improve applying for fresh mortar Work workability increases water-retaining property, avoids excreting water phenomenon, and the flexural strength of polymer mortar can be improved in polyacrylonitrile And flexibility, improve the water resistance, salt-resistance, mobile performance of cement mortar, but influence on compressive property little;And basalt is fine Dimension can form network structure inside mortar, have certain promotion to the flexibility of mortar, while can be obviously improved mortar Compression strength reduces the contract with dry rate of mortar and improves the anti-freezing property of mortar;There are a large amount of oxygen-containing officials of activity on graphite powder surface It can roll into a ball, the reaction of hydrated cementitious can be participated in, improve the interfacial interaction power of hydrated cementitious crystal and graphite powder surface, reach The effect of toughening, while graphite powder can effectively fill up mortar internal void, reduce porosity, improve structural strength and waterproofness Energy.Polymer emulsion can sufficiently form a film in cement, especially cooperate with polyacrylonitrile and basalt fibre, formed with Polyacrylonitrile and basalt fibre are the closely knit space web structure of network skeleton so that mortar internal structure more causes It is close, greatly promote the toughness of mortar, waterproof performance and anti-freezing property.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (6)

1. a kind of polyalcohol cement basis modified mortar, which is characterized in that including the following raw material measured with mass fraction:
2. polyalcohol cement basis modified mortar according to claim 1, which is characterized in that the cement is aluminate cement With the mixture of portland cement;The mass ratio of the aluminate cement and portland cement is 2:1.
3. polyalcohol cement basis modified mortar according to claim 2, which is characterized in that the polymer emulsion is poly- third Olefin(e) acid ester lotion and ethylene-vinyl acetate c lotion;The polyacrylate dispersion and ethylene-vinyl acetate c cream The mass ratio of liquid is 1:1.
4. polyalcohol cement basis modified mortar according to claim 3, which is characterized in that the graphite powder is 500-800 Mesh.
5. polyalcohol cement basis modified mortar according to claim 4, which is characterized in that the rubber powder is 300-500 Mesh.
6. polyalcohol cement basis modified mortar according to claim 5, which is characterized in that the coupling agent is silane coupled Agent.
CN201910099392.4A 2019-01-31 2019-01-31 A kind of polyalcohol cement basis modified mortar Withdrawn CN109678438A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110183192A (en) * 2019-07-09 2019-08-30 吉林重通成飞新材料股份公司 Cement mortar and preparation method thereof
CN110467366A (en) * 2019-08-23 2019-11-19 广东中南建设有限公司 Energy-saving and environment-friendly construction Machine-made Sand
CN113683364A (en) * 2021-09-06 2021-11-23 宁波森泰新材料有限公司 Flexible anti-cracking waterproof mortar and production method thereof
CN114133272A (en) * 2021-10-09 2022-03-04 东华理工大学 High-performance expanded perlite thermal insulation mortar and preparation method thereof
CN114507052A (en) * 2022-03-04 2022-05-17 辽宁泰盈混凝土有限公司 Low-plasticity shrinkage high-strength concrete and prefabricated infrastructure method thereof
CN114702272A (en) * 2022-03-24 2022-07-05 津士佳(天津)新材料有限公司 Wall cement mortar with good waterproof penetration effect and preparation method thereof

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CN106800391A (en) * 2017-01-22 2017-06-06 万玉君 A kind of cement-base composite material for powder bonding 3D printing and the powder using the material bind 3D printing method
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WO2018138535A1 (en) * 2016-08-10 2018-08-02 Laszlo Ferenc Method for producing multi-component insulating plaster
CN106800391A (en) * 2017-01-22 2017-06-06 万玉君 A kind of cement-base composite material for powder bonding 3D printing and the powder using the material bind 3D printing method

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110183192A (en) * 2019-07-09 2019-08-30 吉林重通成飞新材料股份公司 Cement mortar and preparation method thereof
CN110467366A (en) * 2019-08-23 2019-11-19 广东中南建设有限公司 Energy-saving and environment-friendly construction Machine-made Sand
CN110467366B (en) * 2019-08-23 2022-01-04 广东中南建设有限公司 Energy-saving and environment-friendly machine-made sand for building construction
CN113683364A (en) * 2021-09-06 2021-11-23 宁波森泰新材料有限公司 Flexible anti-cracking waterproof mortar and production method thereof
CN114133272A (en) * 2021-10-09 2022-03-04 东华理工大学 High-performance expanded perlite thermal insulation mortar and preparation method thereof
CN114507052A (en) * 2022-03-04 2022-05-17 辽宁泰盈混凝土有限公司 Low-plasticity shrinkage high-strength concrete and prefabricated infrastructure method thereof
CN114702272A (en) * 2022-03-24 2022-07-05 津士佳(天津)新材料有限公司 Wall cement mortar with good waterproof penetration effect and preparation method thereof

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Application publication date: 20190426