CN104119024A - Collapse prevention type water reducing agent - Google Patents

Abstract

The invention discloses a collapse prevention type water reducing agent which is prepared by mixing the following raw materials in parts by weight: 48-62 parts of methyl naphthalenesulfonate formaldehyde condensate, 24-36 parts of polycyclic aromatic hydrocarbon sulfonate formaldehyde condensate, 16-28 parts of glycerinum polyoxyethylene ether ethylhexoate, 15-20 parts of porous calcium phosphate, 10-15 parts of rock wool powder, 5-10 parts of sodium polystyrenesulfonate, 5-10 parts of aloe powder, 4.5-6.5 parts of squalane, 3-5 parts of diisobutyl methanol, 2-4 parts of sodium alginate oligose, 2.5-4.5 parts of sodium hyaluronate, 6-12 parts of sand powder, 10-15 parts of volcanic ash, 3-6 parts of lauric acid diglycollic amide, 4-8 parts of hydroxypropyl guar gum powder and 3-6 parts of additives. The collapse prevention type water reducing agent disclosed by the invention is excellent in collapse prevention, small in collapse loss and high in water reduction rate, can avoid separation or bleeding, and is remarkable in concrete reinforcement effect, good in concrete adaptability and particularly good in adaptability for middle/low flowbility concrete in a high-temperature environment in summer.

Description

Collapse protection type water reducer

Technical field

The present invention relates to a kind of collapse protection type water reducer, belong to concrete admixture field.

Background technology

Concrete admixture, is called for short admixture, refers to before mixing concrete mixing or in mix process, mixes to improve the material of concrete performance.Because admixture can improve concrete performance effectively, and have good economic benefit, in many countries, be all widely used, the application in engineering more and more comes into one's own, and becomes material indispensable in concrete.Wherein collapse protection type water reducer is a kind of in concrete admixture, and it can keep loss fast of concrete slump, reaches the effect that keeps the slump.Still there is the defect of long and high temperature failure of slump hold-time in the collapse protection type water reducer that used in the market, and water-reducing property is poor, cannot meet the construction requirement of high performance concrete.

Summary of the invention

To the object of the invention is the defect existing in prior art in order solving, a kind of have very strong slump save power, higher water-reducing rate and good stable on heating collapse protection type water reducer to be provided.

For achieving the above object, the technical solution used in the present invention is as follows:

A collapse protection type water reducer, is mixed by the raw material of following weight part: methyl naphthalene sulfonic acid salt formaldehyde condensation products 48-62, polycyclic aromatic hydrocarbon sulfonate formaldehyde condensation products 24-36, glycerin polyoxyethylene ether ethylhexoate 16-28, porous calcium phosphate 15-20, rock wool powder 10-15, sodium polystyrene sulfonate 5-10, aloe powder 5-10, squalane 4.5-6.5, diisobutyl carbinol(DIBC) 3-5, algin oligosaccharide 2-4, hyaluronate sodium 2.5-4.5, sand long-pending stone flour 6-12, volcanic ash 10-15, lauric acid diethyl amide 3-6, hydroxypropyl guar rubber powder 4-8, auxiliary agent 3-6;

The preparation method of described auxiliary agent is as follows: a, get the raw material of following weight part: activated magnesia 5-10, tuff micro mist 10-15, desulphurize fly ash 9-16, melamine urea-formaldehyde resin 12-18, microporous calcium silicate 6-12, polyisobutene 5-10, tertiary ethylene carbonate 4-6,2-methyl-2,4-pentanediol polyoxyethylene polyoxypropylene ether 2-4, sodium pentachlorophenol 1.5-2.5, Coconut Fatty Acid Monoethanolamide 3-5, bone meal 4-8, Poly Dimethyl Diallyl Ammonium Chloride 2-4, sulfonated phenylethylene-maleic anhydride copolymer 5-10; B, by sulfonated phenylethylene-maleic anhydride copolymer, Poly Dimethyl Diallyl Ammonium Chloride, 2-methyl-2,4-pentanediol polyoxyethylene polyoxypropylene ether mixes, then add successively activated magnesia, tuff micro mist, desulphurize fly ash, under 45-55 ℃ of bath temperature, stir 10-15min, be cooled to normal temperature, dry, obtain compound A; C, bone meal, microporous calcium silicate are mixed, then add successively melamine urea-formaldehyde resin, Coconut Fatty Acid Monoethanolamide, polyisobutene, tertiary ethylene carbonate, sodium pentachlorophenol, high speed dispersion 5-10min, dries, and obtains compound B; D, compound A and compound B are mixed, obtain described auxiliary agent.

Beneficial effect of the present invention:

Collapse protection type water reducer slump retaining of the present invention is excellent, little loss of slump, and water-reducing rate is high, avoid segregation or bleeding, obvious to concrete reinforced effects, good to concrete adaptability, especially under summer high temperature environment and centering, low flow concrete there is good adaptability.

Embodiment

A collapse protection type water reducer, is mixed by the raw material of following weight (kg): methyl naphthalene sulfonic acid salt formaldehyde condensation products 56, polycyclic aromatic hydrocarbon sulfonate formaldehyde condensation products 32, glycerin polyoxyethylene ether ethylhexoate 24, porous calcium phosphate 18, rock wool powder 12, sodium polystyrene sulfonate 8, aloe powder 6, squalane 5.5, diisobutyl carbinol(DIBC) 4, algin oligosaccharide 3, hyaluronate sodium 3.5, the long-pending stone flour 8 of sand, volcanic ash 12, lauric acid diethyl amide 4, hydroxypropyl guar rubber powder 6, auxiliary agent 4.5;

The preparation method of described auxiliary agent is as follows: a, get the raw material of following weight part: activated magnesia 80, tuff micro mist 14, desulphurize fly ash 12, melamine urea-formaldehyde resin 16, microporous calcium silicate 8, polyisobutene 7, tertiary ethylene carbonate 5,2-methyl-2,4-pentanediol polyoxyethylene polyoxypropylene ether 2.5, sodium pentachlorophenol 2, Coconut Fatty Acid Monoethanolamide 4, bone meal 6, Poly Dimethyl Diallyl Ammonium Chloride 3, sulfonated phenylethylene-maleic anhydride copolymer 7; B, by sulfonated phenylethylene-maleic anhydride copolymer, Poly Dimethyl Diallyl Ammonium Chloride, 2-methyl-2,4-pentanediol polyoxyethylene polyoxypropylene ether mixes, then add successively activated magnesia, tuff micro mist, desulphurize fly ash, under 50 ℃ of bath temperatures, stir 12min, be cooled to normal temperature, dry, obtain compound A; C, bone meal, microporous calcium silicate are mixed, then add successively melamine urea-formaldehyde resin, Coconut Fatty Acid Monoethanolamide, polyisobutene, tertiary ethylene carbonate, sodium pentachlorophenol, high speed dispersion 8min, dries, and obtains compound B; D, compound A and compound B are mixed, obtain described auxiliary agent.

The salient features detected result that the above-mentioned collapse protection type water reducer making mixes in concrete is as shown in the table:

Claims (1)

1. a collapse protection type water reducer, it is characterized in that, raw material by following weight part mixes: methyl naphthalene sulfonic acid salt formaldehyde condensation products 48-62, polycyclic aromatic hydrocarbon sulfonate formaldehyde condensation products 24-36, glycerin polyoxyethylene ether ethylhexoate 16-28, porous calcium phosphate 15-20, rock wool powder 10-15, sodium polystyrene sulfonate 5-10, aloe powder 5-10, squalane 4.5-6.5, diisobutyl carbinol(DIBC) 3-5, algin oligosaccharide 2-4, hyaluronate sodium 2.5-4.5, sand amasss stone flour 6-12, volcanic ash 10-15, lauric acid diethyl amide 3-6, hydroxypropyl guar rubber powder 4-8, auxiliary agent 3-6,

The preparation method of described auxiliary agent is as follows: a, get the raw material of following weight part: activated magnesia 5-10, tuff micro mist 10-15, desulphurize fly ash 9-16, melamine urea-formaldehyde resin 12-18, microporous calcium silicate 6-12, polyisobutene 5-10, tertiary ethylene carbonate 4-6,2-methyl-2,4-pentanediol polyoxyethylene polyoxypropylene ether 2-4, sodium pentachlorophenol 1.5-2.5, Coconut Fatty Acid Monoethanolamide 3-5, bone meal 4-8, Poly Dimethyl Diallyl Ammonium Chloride 2-4, sulfonated phenylethylene-maleic anhydride copolymer 5-10; B, by sulfonated phenylethylene-maleic anhydride copolymer, Poly Dimethyl Diallyl Ammonium Chloride, 2-methyl-2,4-pentanediol polyoxyethylene polyoxypropylene ether mixes, then add successively activated magnesia, tuff micro mist, desulphurize fly ash, under 45-55 ℃ of bath temperature, stir 10-15min, be cooled to normal temperature, dry, obtain compound A; C, bone meal, microporous calcium silicate are mixed, then add successively melamine urea-formaldehyde resin, Coconut Fatty Acid Monoethanolamide, polyisobutene, tertiary ethylene carbonate, sodium pentachlorophenol, high speed dispersion 5-10min, dries, and obtains compound B; D, compound A and compound B are mixed, obtain described auxiliary agent.