A high-efficiency and environmentally friendly composite water reducer
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A water-reducing agent and composite technology, applied in the field of concrete, can solve the problem of not very long time, and achieve the effects of low air content, high water reduction rate and cost reduction.
Active Publication Date: 2016-08-31
广东博众建材科技发展有限公司
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Problems solved by technology
[0007] Since the application of polycarboxylate at home and abroad is not very long, especially in the season of low or high temperature, the air bubbles on the surface of concrete are more obvious, and there have been no relevant patents and literatures to solve this problem. Method
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Embodiment 1
[0021] In the embodiment of the present invention, a high-efficiency and environment-friendly composite water reducer, the raw materials in parts by weight include: 100 parts of polycarboxylate water reducer, 8 parts of rust inhibitor, 1 part of defoamer, 5 parts of antifreeze, 22 parts of initiator and 300 parts of water; when preparing, add polycarboxylate water reducer and water into the reactor, and raise the temperature to 55°C and stir for 30 minutes; then raise the temperature to 90°C, add defoamer and initiator, and stir for 2 hours ; Cool down to 45°C, add rust inhibitor and antifreeze, and stir for 0.6h.
Embodiment 2
[0023] In the embodiment of the present invention, a high-efficiency and environment-friendly composite water reducer, the raw materials in parts by weight include: 120 parts of polycarboxylate water reducer, 15 parts of rust inhibitor, 5 parts of defoamer, 16 parts of antifreeze, 35 parts of initiator, 350 parts of water; when preparing, add polycarboxylate water reducer and water into the reactor, and raise the temperature to 55°C and stir for 45 minutes; then raise the temperature to 90°C, add defoamer and initiator, and stir for 3 hours ; Cool down to 45°C, add rust inhibitor and antifreeze, and stir for 0.8h.
Embodiment 3
[0025] In the embodiment of the present invention, a high-efficiency and environment-friendly composite water reducer, the raw materials in parts by weight include: 113 parts of polycarboxylate water reducer, 12 parts of rust inhibitor, 4 parts of defoamer, 11 parts of antifreeze, 29 parts of initiator, 330 parts of water. During preparation, add polycarboxylate water reducer and water to the reaction kettle, and heat up to 55°C and stir for 35 minutes; then heat up to 90°C, add defoamer and initiator, and stir for 2.3 hours; cool down to 45°C, add resistance Rust agent, antifreeze, stir for 0.65h.
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Abstract
The invention discloses a high-efficiency and environment-friendly compound water reducer. The high-efficiency and environment-friendly compound water reducer comprises the following raw materials in parts by weight: 100-120 parts of a polycarboxylate-type water reducer, 8-15 parts of a corrosion inhibitor, 1-5 parts of a defoaming agent, 5-16 parts of an antifreezing agent, 22-35 parts of an initiator and 300-350 parts of water. The high-efficiency and environmental-friendly compound water reducer is prepared by the following steps: adding the polycarboxylate-type water reducer and water into a reaction kettle during preparation, heating to 55 DEG C, and stirring for 30-45 minutes; heating to 90 DEG C, adding the defoaming agent and the initiator, and stirring for 2-3 hours; cooling to 45 DEG C, adding the corrosion inhibitor and the antifreezing agent, and stirring for 0.6-0.8 hour. Concrete prepared from the high-efficiency and environmental-friendly compound water reducer has the beneficial effects that the water-reducing rate is relatively high and exceeds 28%, and the gas content is relatively low; the concrete is applicable to seasons with relatively high or low temperature.
Description
technical field [0001] The invention relates to the field of concrete, in particular to a high-efficiency and environment-friendly composite water reducer. Background technique [0002] Concrete, referred to as concrete: refers to the collective name of engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Concrete, which is widely used in civil engineering. [0003] Inorganic cementitious materials such as cement, lime, and gypsum are mixed with water to make the concrete mixture plastic; and then through chemical and physical and chemical actions, it coagulates and hardens to produce strength. Generally speaking, drinking water can meet the requirements of concrete mixing wa...
Claims
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Application Information
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