Compound concrete admixture with early strength and water reduction functions, and preparation method and application thereof
A concrete admixture and composite technology, which is applied in the field of concrete admixture and its preparation and application, can solve the problems of difficult to meet high requirements of concrete engineering, large mixing amount, difficult compatibility, etc., and achieve excellent early strength performance And water reduction effect, simple process, quick effect
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[0048] Example 1:
[0049] A composite concrete admixture with early strength and water-reducing functions of the present invention is mainly prepared from the following components in parts by mass:
[0050] 14 parts of polycarboxylate water reducer,
[0051] 1 part of surfactant,
[0052] 20 servings of early strength agent,
[0053] Air-entraining agent 0.5 parts, and
[0054] 50 parts of water.
[0055] In the above-mentioned composite concrete admixture of this embodiment, the polycarboxylate water reducer is a polycarboxylate water reducer formed by the polymerization of amino-modified acrylic acid, methacrylic acid, allyl polyoxyethylene ether and acrylamide. (polyether type). The polycarboxylate water reducer is a multifunctional polycarboxylate water reducer with high dispersibility and high early strength. Adding the polycarboxylate water-reducing agent of the present invention to the concrete, its hydrophobic group is oriented and adsorbed on the surface of th...
Example Embodiment
[0065] Example 2:
[0066] A composite concrete admixture with early strength and water-reducing functions of the present invention is mainly prepared from the following components in parts by mass:
[0067] 18 parts of polycarboxylate water reducer,
[0068] 3 parts of surface active agent,
[0069] 30 servings of early strength agent,
[0070] Air-entraining agent 0.5 parts, and
[0071] Water 72.5 parts.
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