Retarded high-efficiency superplasticizer
A high-efficiency water-reducing agent and retarding technology, applied in the field of retarding high-efficiency water-reducing agents, can solve the problems of insignificant retarding effect, failure to meet high-strength and high-performance concrete, and low water-reducing rate, and achieve excellent work performance and reliable performance. Good pump performance and high water reducing rate
Inactive Publication Date: 2015-12-30
临沂天元混凝土工程有限公司
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Problems solved by technology
The slow setting water reducer currently used in the market has the disadvantages of not obvious retarding effect and low water reducing rate, which cannot meet the requirements of high strength and high performance concrete
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[0010] A retarding high-efficiency water reducer, which is made by mixing the following raw materials by weight (kg): melamine sulfonate formaldehyde condensate 50, polyoxyindene resin sodium sulfonate 30, corn starch 12, sodium gluconate 10, xylose Alcohol 3, calcium superphosphate 6, sodium ethylenediamine tetramethylene phosphonate 4, rosin glyceride 2.5, triethanolamine 4, sugarcane molasses 6, sodium citrate 4, ferrous carbonate 5, fumed silica 8, sulfur aluminum Calcium acid 11, polyvinyl alcohol 6, carbide slag 12, additive 5.5;
[0011] The auxiliary agent is made of the following raw materials in parts by weight: magnesite 15, magnesium humate 5, ammonium benzoate 3, sodium α-alkenyl sulfonate 10, phytate 2, isobutylene triethoxy Silane 4, polyferric chloride 7, germanite powder 16, titanium dioxide 8, myristyl glucoside 1.5, polyamide wax 5, lithium magnesium silicate 3, tea saponin 2;
[0012] Mix the above-mentioned magnesite, germanite powder, and titanium dioxid...
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The invention discloses a high-efficiency delayed coagulation water reducing agent which is prepared by mixing the following raw materials in parts by weight: 40-60 parts of melamine sulfonate formaldehyde condensation product, 25-35 parts of poly-benzofuran resin sodium sulfonate, 10-15 parts of corn starch, 8-12 parts of sodium gluconate, 2-4 parts of xylitol, 4-8 parts of calcium superphosphate, 3-6 parts of ethylene diamine tetra (methylene phosphonic acid) sodium, 2-3 parts of glycerol ester of rosin, 3-5 parts of triethanolamine, 4-7 parts of cane molasses, 3.5-4.5 parts of sodium citrate, 4-6 parts of ferrous carbonate, 5-10 parts of fumed silica, 7-13 parts of calcium sulphoaluminate, 4-8 parts of polyvinyl alcohol, 10-15 parts of acetylene sludge and 4.5-6.5 parts of aids. The water reducing agent is high in water reducing ratio, low in slump loss, obvious in enhancement effect and excellent in working performance, the coagulation time of concrete can be obviously delayed, and after the concrete is doped, the water reducing agent is high in pumpability, high in cohesiveness, high in durability, low in gas content and low in bleeding rate and has high economic benefits and social benefits.
Description
technical field [0001] The invention relates to a retarding high-efficiency water reducer, which belongs to the field of concrete admixtures. Background technique [0002] Concrete admixtures, referred to as admixtures for short, refer to substances that are added to improve the performance of concrete before or during the mixing of concrete. Because admixtures can effectively improve the performance of concrete and have good economic benefits, they have been widely used in many countries, and their application in engineering has attracted more and more attention, becoming an indispensable material in concrete. Among them, retarding superplasticizer is a kind of concrete admixture, which can delay the setting time of concrete, make fresh concrete maintain plasticity for a long time, facilitate pouring, improve construction efficiency, and at the same time, it will not cause adverse effects on various performances of concrete in the later stage effect, and also has the effec...
Claims
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IPC IPC(8): C04B24/38
Inventor 徐松夏晖蔺红亮
Owner 临沂天元混凝土工程有限公司