Aqueous polymer solution with anti-mud or mud-resistance performances and preparation method thereof

Abstract

The invention discloses an aqueous polymer solution with anti-mud or mud-resistance performances and a preparation method thereof. The technical scheme employed by the invention is relatively good in anti-mud or mud-resistance effects, and can be individually used and added, and also mixedly used with a polycarboxylate water reducer, thereby being capable of improving the anti-mud or mud-resistance performance of the polycarboxylate water reducer. The invention is characterized in that (1) the molecular structure is novel, a main chain has ester groups and cationic, the aqueous polymer solution has relatively good effect on ordinary sand and gravel materials, especially for sand and gravel materials being high in mud content, and if the aqueous polymer solution is individually used, a mixing amount of the solid is 0.01-0.22 % based on weight of all gelling materials; (2) the molecular structure has no retarder components, and different seasons do not influence a normal coagulation time of concrete; and (3) the aqueous polymer solution can be used together with the water reducer or individually used, and thus is better than similar products in markets; and the products in the markets can only be individually used, but not be mixed with the water reducer simultaneously.

Description

[0001] technical field [0002] The invention relates to a kind of clean slurry, mortar and concrete with high mud content, when the mud content of natural sand, machine-made sand or stone is more than 3% in the proportion of concrete batching materials, it can improve the flow of fresh concrete Degree, such as slump or expansion, especially relates to a method for preparing an aqueous polymer solution with mud resistance or mud resistance. Background technique [0003] Cement slurry, mortar and concrete materials are the most used modern building materials. They are widely used in various projects such as urban construction, infrastructure construction, industrial and civil construction, water conservancy engineering, military engineering, and transportation engineering in the country's economic construction. . One of the characteristics of concrete materials is compressive strength, durability and workability of fresh concrete etc. as the main design indicators. Accordin...

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Problems solved by technology

[0004] The present invention is mainly aimed at the problems in the use of polycarboxylate concrete water reducer in the prior art. When the mud content of sand and gravel in the concrete mix ratio is higher than 3%, the slump or flow of freshly mixed concrete will be reduced. A water solution of a polymer with mud resistance or mud resistance and its preparation method are proposed because the water consumption of one side of the concrete needs to be increased. The water-soluble polymer has cationic properties, and the side chain of the main chain has an ester radical and cationic structure

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