CN104058649A - Waterproof concrete and preparation method thereof - Google Patents

Abstract

The invention relates to waterproof concrete which is prepared from the following raw materials in parts by weight: 11-14 parts of lithium carbonate, 25-28 parts of hard calcium carbonate, 30-40 parts of fly ash, 7-9 parts of acrylamide, 2-3 parts of calcium formate, 30-40 parts of inorganic bentonite, 20-25 parts of sodium silicate, 190-220 parts of cement, 560-580 parts of coarse aggregate, 300-330 parts of fine aggregate, a right amount of water and 20-25 parts of assistant. According to the invention, the inorganic bentonite is added, the concrete is favorable in compactness, the impermeability and the water resistance are greatly improved, and the strength is also enhanced obviously; by using the assistant which can participate in the reaction of the concrete, the strength of the concrete is improved, and the concrete also has fine water-reducing property, workability, plasticity and pumpability; and the concrete can be widely used in occasions such as foundation works, train roadbeds and the like.

Description

A kind of water-proof concrete and preparation method thereof

Technical field

The invention belongs to building material field, particularly a kind of water-proof concrete and preparation method thereof.

Background technology

Concrete has abundant raw material, cheap, the simple feature of production technique, thereby make its consumption increasing.It is high that while concrete also has ultimate compression strength, good endurance, the features such as strength grade wide ranges.These features make its use range very extensive, not only in various civil engineering works, use, and be exactly shipbuilding, mechanical industry, the exploitation of ocean, geothermal engineering etc., concrete is also important material.

Along with the development of component materials of concrete, people are to being not only confined to ultimate compression strength to concrete performance requriements, but on the basis of basing oneself upon intensity, more focus on concrete weather resistance, deformation performance, fire-and explosion-proof performance, water-impervious performance, toughness, erosion resistance, heat retaining property, health environment-friendly and reduce costs etc. the balance and coordination of overall target.The requirement of concrete property indices is than clearer and more definite, refinement and concrete in the past.Meanwhile, the lifting of Architectural Equipment level, continuing to bring out and promoting of novel construction process, makes concrete technology adapt to different designs, construction and service requirements, develops very fast.

Concrete also be unable to do without the raw-material development of the reinforcement of concrete, be unable to do without the development and change of concrete engineering application.Therefore, development performance is more excellent, function is more powerful, more adapt to novel process, the concrete of new building object just seems particularly important.

Summary of the invention

The object of the present invention is to provide a kind of water-proof concrete and preparation method thereof, this concrete density is good, and impervious water resistance improves greatly, and its intensity also obviously improves.

Technical scheme of the present invention is as follows:

A kind of water-proof concrete, is characterized in that being made up of the raw material of following weight part: Quilonum Retard 11-14, hard calcium carbonate 25-28, flyash 30-40, acrylamide 7-9, calcium formiate 2-3, inorganic bentonite 30-40, water glass 20-25, cement 190-220, coarse aggregate 560-580, fine aggregate 300-330, water are appropriate, auxiliary agent 20-25;

Described auxiliary agent is made up of the raw material of following weight part: steel fiber 5-6, methacrylic ester 2-3, isophorone diisocyanate 2-3, bisphenol A epoxide resin 4-5, magnesium oxide 3-4, ethyl propenoate 4-5, Oleum Bupleuri 0.4-0.7, trolamine 1-2, sodium hydroxide 0.6-0.9, tripoly phosphate sodium STPP 0.4-0.6, styrylphenol polyoxyethylene ether 0.5-0.8, ammonium persulphate 0.1-0.2, Potassium Persulphate 0.1-0.2, water 9-12; Preparation method is: water, tripoly phosphate sodium STPP, styrylphenol polyoxyethylene ether, steel fiber, methacrylic ester, ethyl propenoate, trolamine are mixed, be heated to 70-80 DEG C, add ammonium persulphate reaction 20-30 minute, mix with other remaining components again, be heated to 80-90 DEG C, stirring reaction 30-40 minute, to obtain final product.

The preparation method of described water-proof concrete, is characterized in that comprising the following steps:

(1) Quilonum Retard, hard calcium carbonate, inorganic bentonite, acrylamide, calcium formiate, water glass are mixed, dispersion grinding 20-30 minute, then mix with water, stir, obtain mixed serum;

(2) flyash, cement, coarse aggregate, fine aggregate are mixed, the mixed serum and other remaining components that obtain with (1) step mix, stirring reaction 8-12 minute, and then cast, vibrates;

(3) in the wet environment of 5-25 DEG C, carry out maintenance 6-8 days after building, to obtain final product.

Beneficial effect of the present invention

Concrete of the present invention has added inorganic bentonite, and density is good, and impervious water resistance improves greatly, and its intensity also obviously improves; By making used additives, increase concrete pressure-proof and snap-resistent intensity, increase concrete fragrance, rustless property, waterproof, seepage control performance are good, also have good water reducing ability, workability, plasticity-and can pumping effect; Can be widely used in the occasion such as foundation works, train roadbed.

Embodiment

A kind of water-proof concrete, by following weight part (kilogram) raw material make: Quilonum Retard 12, hard calcium carbonate 27, flyash 36, acrylamide 8, calcium formiate 2.5, inorganic bentonite 35, water glass 23, cement 200, coarse aggregate 570, fine aggregate 320, water are appropriate, auxiliary agent 23;

Described auxiliary agent by following weight part (kilogram) raw material make: steel fiber 5, methacrylic ester 2.5, isophorone diisocyanate 2.5, bisphenol A epoxide resin 4.5, magnesium oxide 3.5, ethyl propenoate 4.5, Oleum Bupleuri 0.6, trolamine 1.5, sodium hydroxide 0.7, tripoly phosphate sodium STPP 0.5, styrylphenol polyoxyethylene ether 0.6, ammonium persulphate 0.1, Potassium Persulphate 0.1, water 11; Preparation method is: water, tripoly phosphate sodium STPP, styrylphenol polyoxyethylene ether, steel fiber, methacrylic ester, ethyl propenoate, trolamine are mixed, be heated to 75 DEG C, add ammonium persulphate reaction 25 minutes, mix with other remaining components again, be heated to 85 DEG C, stirring reaction 35 minutes, to obtain final product.

The preparation method of described water-proof concrete, comprises the following steps:

(1) Quilonum Retard, hard calcium carbonate, inorganic bentonite, acrylamide, calcium formiate, water glass are mixed, dispersion grinding 25 minutes, then mix with water, stir, obtain mixed serum;

(2) flyash, cement, coarse aggregate, fine aggregate are mixed, the mixed serum and other remaining components that obtain with (1) step mix, stirring reaction 11 minutes, and then cast, vibrates;

(3) in the wet environment of 15-25 DEG C, carry out maintenance 7 days after building, to obtain final product.

Experimental data:

The strength grade of concrete of this embodiment is C40, and the slump is 14cm, ultimate compression strength, 48.9MPa, folding strength 18.6MPa.

Claims (2)

1. a water-proof concrete, is characterized in that being made up of the raw material of following weight part: Quilonum Retard 11-14, hard calcium carbonate 25-28, flyash 30-40, acrylamide 7-9, calcium formiate 2-3, inorganic bentonite 30-40, water glass 20-25, cement 190-220, coarse aggregate 560-580, fine aggregate 300-330, water are appropriate, auxiliary agent 20-25;

Described auxiliary agent is made up of the raw material of following weight part: steel fiber 5-6, methacrylic ester 2-3, isophorone diisocyanate 2-3, bisphenol A epoxide resin 4-5, magnesium oxide 3-4, ethyl propenoate 4-5, Oleum Bupleuri 0.4-0.7, trolamine 1-2, sodium hydroxide 0.6-0.9, tripoly phosphate sodium STPP 0.4-0.6, styrylphenol polyoxyethylene ether 0.5-0.8, ammonium persulphate 0.1-0.2, Potassium Persulphate 0.1-0.2, water 9-12; Preparation method is: water, tripoly phosphate sodium STPP, styrylphenol polyoxyethylene ether, steel fiber, methacrylic ester, ethyl propenoate, trolamine are mixed, be heated to 70-80 DEG C, add ammonium persulphate reaction 20-30 minute, mix with other remaining components again, be heated to 80-90 DEG C, stirring reaction 30-40 minute, to obtain final product.

2. the preparation method of water-proof concrete according to claim 1, is characterized in that comprising the following steps:

(1) Quilonum Retard, hard calcium carbonate, inorganic bentonite, acrylamide, calcium formiate, water glass are mixed, dispersion grinding 20-30 minute, then mix with water, stir, obtain mixed serum;

(2) flyash, cement, coarse aggregate, fine aggregate are mixed, the mixed serum and other remaining components that obtain with (1) step mix, stirring reaction 8-12 minute, and then cast, vibrates;

(3) in the wet environment of 5-25 DEG C, carry out maintenance 6-8 days after building, to obtain final product.