CN106082771B - Concrete water-retaining agent - Google Patents

Concrete water-retaining agent Download PDF

Info

Publication number
CN106082771B
CN106082771B CN201610471697.XA CN201610471697A CN106082771B CN 106082771 B CN106082771 B CN 106082771B CN 201610471697 A CN201610471697 A CN 201610471697A CN 106082771 B CN106082771 B CN 106082771B
Authority
CN
China
Prior art keywords
parts
concrete
retaining agent
water
concrete water
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.)
Active
Application number
CN201610471697.XA
Other languages
Chinese (zh)
Other versions
CN106082771A (en
Inventor
陈威
黄煌
王恒
尹丹
阮长泰
谢体云
欧鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUILIN HUAYUE ENVIRONMENTAL PROTECTION CO Ltd
Original Assignee
GUILIN HUAYUE ENVIRONMENTAL PROTECTION CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUILIN HUAYUE ENVIRONMENTAL PROTECTION CO Ltd filed Critical GUILIN HUAYUE ENVIRONMENTAL PROTECTION CO Ltd
Priority to CN201610471697.XA priority Critical patent/CN106082771B/en
Publication of CN106082771A publication Critical patent/CN106082771A/en
Application granted granted Critical
Publication of CN106082771B publication Critical patent/CN106082771B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • 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
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/46Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents

Abstract

The invention belongs to technical field of concrete additives, more particularly to a kind of concrete water-retaining agent is made of the raw material of following parts by weight:30~50 parts of hydroxypropyl methyl cellulose, 10~18 parts of diatomite, 5~15 parts of glycerin monostearate, 3~15 parts of calcium sulphoaluminate, 2~10 parts of alkyl glycosides.The concrete water-retaining agent of the present invention, with higher water retention, performance is stablized, and can improve the intensity of concrete, cracking resistance and concrete durability.

Description

Concrete water-retaining agent
Technical field
The invention belongs to technical field of concrete additives, more particularly to a kind of concrete water-retaining agent.
Background technology
Cement needs enough water in hardening process and reacts, and just can guarantee the intensity of cement.It is general to require just Ready-made concrete need to sprinkle water maintenance 7 days or more.But in many Practical Projects, often do not accomplish that watering conserves 7 days, and cement The ratio of the moisture evaporation on surface is very fast, if do not retained the moisture in concrete, will certainly influence the intensity of cement.Traditional coagulation The method of soil water conservation is that suitable cellulose is added.Fiber is known as certain water retention, but effect is bad.Currently on the market Have the curing agent for playing water retention, such as organosilicon curing agent, this kind of curing agent mechanism of action generally concrete formation 4~ One layer of curing agent is being sprayed above again after 8 hours, so that concrete surface is formed one layer of hydrophobic film, to play maintenance action.This Sample curing agent need to individually construct, complex procedures.In addition, existing water-retaining agent compounding still has, stability is poor, and there are lag to secrete Phenomena such as water, isolation.
In addition, being widely used with additive, the ratio of mud is smaller and smaller, and free water is seldom in concrete, is easy in work Plastic shrinkage occurs in journey so as to cause face checking;The raw material factor such as increase of cement consumption and fineness further increases Early-age shrinkage;Additionally, due to environmental factors such as construction temperature, wind speed, maintenance waits construction factors not in time, has been further exacerbated by mixed The probability that solidifying soil cracking seam occurs.Under conditions of cement, additive, admixture can not adjust, how to enhance the cracking resistance of concrete Performance is the technical barrier put in face of technical staff.
Invention content
Technical problem to be solved by the invention is to provide concrete water-retaining agent, and with higher water retention, performance is steady It is fixed, and can improve the intensity of concrete, cracking resistance and concrete durability.
To achieve the above object, technical solution to be solved by this invention is:
The present invention provides concrete water-retaining agent, is made of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 30~50 Part, 10~18 parts of diatomite, 5~15 parts of glycerin monostearate, 3~15 parts of calcium sulphoaluminate, 2~10 parts of alkyl glycosides.
Preferably, concrete water-retaining agent of the present invention, is made of the raw material of following parts by weight:Hydroxypropyl methyl fiber 35~45 parts of element, 12~16 parts of diatomite, 7~13 parts of glycerin monostearate, 7~12 parts of calcium sulphoaluminate, alkyl glycosides 4~8 Part.
It is highly preferred that concrete water-retaining agent of the present invention, is made of the raw material of following parts by weight:Hydroxypropyl methyl is fine 40 parts of dimension element, 14 parts of diatomite, 10 parts of glycerin monostearate, 10 parts of calcium sulphoaluminate, 6 parts of alkyl glycosides.
Preferably, diatomaceous average grain diameter of the present invention is 1~10 μm.Diatomite in this particle size range, with Other material combinations not only have preferable water-retaining property, additionally it is possible to preferably solve the phenomenon that concrete finds crack, improve coagulation Native intensity.
Preferably, diatomaceous average grain diameter of the present invention is 5 μm.
In the raw material of the present invention, alkyl glycosides is synthesized by renewable resource natural fat alcohol and glucose, is a kind of The more comprehensive new non-ionic surfactants of performance, it has both the characteristic of conventional nonionic and anion surfactant, tool There are high surface, good ecological security and intermiscibility, be internationally recognized preferred " green " functional surfactant, With hydroxypropyl methyl cellulose compatibility, the mechanical strength of foam can be further increased, the part of hydroxypropyl methyl cellulose Group can be combined with water molecules hydrogen bond so that moisture, which can be attracted on bubble film, not to be lost in, and is reduced concrete and is secreted Water rate improves foam stability;After cement solidification bubble-break, hydroxypropyl methyl cellulose can be inhaled with other material combinations Attached a large number of water molecules avoids moisture from evaporated between slit, to ensure the follow-up aquation of cement, it is ensured that the cracking resistance of concrete Performance, in addition, alkyl glycosides and hydroxypropyl methyl cellulose, glycerin monostearate can also improve the intensity of concrete, with And the adaptability of water-retaining agent and concrete.
The calcium sulphoaluminate of the present invention generates certain microdilatancy in inside concrete, inside Behavior of Hardened Cement Paste and with thick (thin) bone The interface of material, reinforcing bar, by the crowd in-out effects of microdilatancy, whole compactness is improved, and hydrated product is filled with concrete Hole, the formation for having filling, blocking capillary slit cut off capillary slit, macropore are made to become smaller, and overall porosity reduces, can be effective It reduces, compensating concrete is shunk, hence it is evident that improve concrete initial value stability.
Compared with prior art, the beneficial effects of the present invention are:
1, there is concrete water-retaining agent of the invention higher water retention, performance to stablize, water retention can to 92% or more, Seven days percentages of water loss of outdoor placement are only 4~9%.
2, concrete water-retaining agent of the invention can improve the intensity of concrete, and wherein 3d flexural strengths improve 9~19%, 3d Compression strength 7~16%, 28d flexural strengths improve 11~17%, 28d compression strength and improve 13~18%.
3, using the concrete water-retaining agent of the present invention, concrete water-reducing ratio significantly improves, without bleeding, segregation phenomenon.
4, concrete water-retaining agent of the invention is conducive to the raising of the anti-blending freezing and thawing performance of maturing, wherein through surveying Amount, freeze thawing resistance cycle-index can reach 200 times.
5, concrete water-retaining agent property indices of the invention meet the index request to cracking resistance, lower shrinkage concrete.
6, concrete water-retaining agent performance of the invention is stablized, and good with the adaptability of concrete, additional with other concrete Agent compatibility is good.
7, the durability of concrete water-retaining agent of the invention raising concrete refers to durability compared with normal concrete It is marked with 200 dynamic modulus of elasticity retentions and is calculated as 90%, durability loss is smaller.
Specific implementation mode
The invention will be further described with reference to embodiments, but the invention is not limited in these embodiments.
Embodiment 1
Concrete water-retaining agent is made (uniformly mixed) of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 30 Part, 18 parts of diatomite (average grain diameter is 1 μm), 15 parts of glycerin monostearate, 15 parts of calcium sulphoaluminate, 2 parts of alkyl glycosides.
Embodiment 2
Concrete water-retaining agent is made (uniformly mixed) of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 35 Part, 16 parts of diatomite (average grain diameter is 3 μm), 7 parts of glycerin monostearate, 12 parts of calcium sulphoaluminate, 8 parts of alkyl glycosides.
Embodiment 3
Concrete water-retaining agent is made (uniformly mixed) of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 40 Part, 14 parts of diatomite (average grain diameter is 4 μm), 10 parts of glycerin monostearate, 10 parts of calcium sulphoaluminate, 6 parts of alkyl glycosides.
Embodiment 4
Concrete water-retaining agent is made (uniformly mixed) of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 45 Part, 12 parts of diatomite (average grain diameter is 6 μm), 13 parts of glycerin monostearate, 7 parts of calcium sulphoaluminate, 4 parts of alkyl glycosides.
Embodiment 5
Concrete water-retaining agent is made (uniformly mixed) of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 50 Part, 10 parts of diatomite (average grain diameter is 7 μm), 5 parts of glycerin monostearate, 3 parts of calcium sulphoaluminate, 10 parts of alkyl glycosides.
Embodiment 6
Concrete water-retaining agent is made (uniformly mixed) of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 33 Part, 17 parts of diatomite (average grain diameter is 8 μm), 14 parts of glycerin monostearate, 11 parts of calcium sulphoaluminate, 9 parts of alkyl glycosides.
Embodiment 7
Concrete water-retaining agent is made (uniformly mixed) of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 48 Part, 11 parts of diatomite (average grain diameter is 10 μm), 7 parts of glycerin monostearate, 4 parts of calcium sulphoaluminate, 6 parts of alkyl glycosides.

Claims (5)

1. concrete water-retaining agent, which is characterized in that be made of the raw material of following parts by weight:Hydroxypropyl methyl cellulose 30~50 Part, 10~18 parts of diatomite, 5~15 parts of glycerin monostearate, 3~15 parts of calcium sulphoaluminate, 2~10 parts of alkyl glycosides.
2. concrete water-retaining agent according to claim 1, which is characterized in that be made of the raw material of following parts by weight:Hydroxypropyl 35~45 parts of ylmethyl cellulose, 12~16 parts of diatomite, 7~13 parts of glycerin monostearate, 7~12 parts of calcium sulphoaluminate, alkane 4~8 parts of base glucosides.
3. concrete water-retaining agent according to claim 2, which is characterized in that be made of the raw material of following parts by weight:Hydroxypropyl 40 parts of ylmethyl cellulose, 14 parts of diatomite, 10 parts of glycerin monostearate, 10 parts of calcium sulphoaluminate, 6 parts of alkyl glycosides.
4. the concrete water-retaining agent according to claims 1 to 3 any one, it is characterised in that:It is described diatomaceous average Grain size is 1~10 μm.
5. the concrete water-retaining agent according to claims 1 to 3 any one, it is characterised in that:It is described diatomaceous average Grain size is 5 μm.
CN201610471697.XA 2016-06-24 2016-06-24 Concrete water-retaining agent Active CN106082771B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610471697.XA CN106082771B (en) 2016-06-24 2016-06-24 Concrete water-retaining agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610471697.XA CN106082771B (en) 2016-06-24 2016-06-24 Concrete water-retaining agent

Publications (2)

Publication Number Publication Date
CN106082771A CN106082771A (en) 2016-11-09
CN106082771B true CN106082771B (en) 2018-08-14

Family

ID=57252597

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610471697.XA Active CN106082771B (en) 2016-06-24 2016-06-24 Concrete water-retaining agent

Country Status (1)

Country Link
CN (1) CN106082771B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106866036A (en) * 2017-03-15 2017-06-20 中交第三公路工程局有限公司 The method for improving bituminous concrete dynamic stability
CN107285706A (en) * 2017-08-16 2017-10-24 柳州市天开企业管理有限公司 A kind of concrete
CN107651878A (en) * 2017-10-25 2018-02-02 桐城市永锦建筑工程有限公司 A kind of concrete water-loss reducer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103086638B (en) * 2013-01-08 2015-07-08 张立功 Mortar additive and production process thereof
CN103113038A (en) * 2013-01-31 2013-05-22 沈池清 Mortar water-retaining and thickening agent and preparation method thereof
CN103553418B (en) * 2013-09-27 2016-04-06 江苏兆佳建材科技有限公司 A kind of premixing mortar water-retention thixotropic agent and preparation method thereof
CN103553421B (en) * 2013-11-01 2015-10-14 深圳市中天元实业有限公司 A kind of environmentally friendly compounding coagulation soil whipping agent and preparation method thereof
CN104556813B (en) * 2015-01-26 2016-08-24 张泽荣 A kind of complex slag water retention enhancing agents
CN105503019B (en) * 2015-12-29 2018-05-04 江苏苏博特新材料股份有限公司 The preparation method of concrete water evaporation inhibitor

Also Published As

Publication number Publication date
CN106082771A (en) 2016-11-09

Similar Documents

Publication Publication Date Title
CN106082771B (en) Concrete water-retaining agent
CN107777956A (en) Anti-cracking large volume concrete
CN106966659B (en) A kind of water-fast crack resistance type foam concrete and preparation method
CN107814500B (en) Ecological concrete cementing material and neutral ecological concrete
CN103601417B (en) Super retarder
CN103214262B (en) Comprehensive foamed concrete property-modifying additive, preparation method thereof and concrete
CN103848643B (en) A kind of concrete anticracking curing agent and preparation method thereof
CN102320860B (en) Concrete-curing agent applicable to strong-wind arid area and preparation method thereof
CN109293318A (en) Pervious concrete
CN104692751B (en) Based on the viscose wooden stick anchoring rod earthen ruins grouting material of water-based fluorine
CN110078408A (en) A kind of cement concrete salt resistance jelly mixed solution and its application method
CN104891905A (en) Cement base insulator adhesive
CN107352837A (en) A kind of concrete water-loss reducer
CN109135672A (en) The preparation method of high temperature modification cement concrete pavement antiskid inorganic agent and inorganic agent
CN107285718A (en) A kind of lime base is micro- to shrink grouting material group thing and preparation method thereof
CN106116225A (en) A kind of concrete water-retaining agent
CN1657481A (en) Water-preserving agent for cement
CN105110733A (en) Adhesive mortar for phenolic insulation board
CN110173122A (en) It is a kind of can dense surface enhancing the compound maintenance process of concrete heat-insulating moisturizing
CN101318803B (en) Heat insulating material for flume and its preparation method
CN107651878A (en) A kind of concrete water-loss reducer
CN108751781A (en) A kind of concrete water-retaining agent
CN108341614A (en) A kind of polycarboxylate water-reducer in big chutable concrete
CN102503219A (en) Compound with biological materials and application thereof
CN106630921B (en) High-performance pervious concrete cementing agent and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant