A kind of polymer cement mortar and its preparation method and construction method

Abstract

The invention relates to polymer cement mortar, and a preparation method and a construction method thereof. The mortar comprises powder materials and liquid materials; according to weight, the ratio of the powder materials to the liquid materials is 1-3 to 1; according to the weight of the powder materials, the powder materials comprise 20 to 50 percent of Portland cement, 5 to 10 percent of high-aluminum cement, 5 to 10 percent of an expanding agent, 5 to 15 percent of a heavy calcium powder, 30 to 50 percent of quartz sand, 0.1 to 0.4 percent of a water-reducing agent, 0.1 to 0.4 percent ofa first defoaming agent, 0.1 to 0.2 percent of a retarder, 0.1 to 0.5 percent of cellulose ether, 0.03 to 0.15 percent of a coagulant and 0.1 to 0.5 percent of pigment; according to weight of the liquid materials, the liquid materials comprise 40 to 50 percent of polymerized emulsion, 49 to 59 percent of water, 0.1 to 0.5 percent of a second defoaming agent, 0.1 to 0.5 percent of preservative, 0.1to 0.5 percent of film-forming aid and 0.1 to 0.5 percent of a thickening agent. The polymer cement mortar provided by the invention can meet the construction requirement that the thickness is not more than 2 mm.

Description

technical field [0001] The present disclosure relates to the technical field of building materials, in particular to a polymer cement mortar and a preparation method and a construction method thereof. Background technique [0002] At present, the common floor decoration materials on the market can be roughly divided into two categories according to product types, namely organic floor materials and inorganic floor materials. The organic floor material is mainly epoxy floor, which has excellent flexibility and bright colors, but it is easy to delaminate and bulge, has pungent smell during construction, single color, poor aging resistance, short life, and cannot Insufficient for use in open-air environments; inorganic floor materials are mainly cement self-leveling. At present, there are many cement self-leveling manufacturers and types on the market, and the quality is also uneven. Most of the cement self-leveling materials have low cost and convenient construction, but It ha...

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Problems solved by technology

The organic floor material is mainly epoxy floor, which has excellent flexibility and bright colors, but it is easy to delaminate and bulge, has pungent smell during construction, single color, poor aging resistance, short life, and cannot Insufficient for use in open-air environments; inorganic floor materials are mainly cement self-leveling. At present, there are many cement self-leveling manufacturers and types on the market, and the quality is also uneven. Most of the cement self-leveling materials have low cost and convenient construction, but It has the disadvantages of high brittleness, easy cracking, easy sanding, easy anti-alkali, poor surface hardness, etc. It is mainly used as self-leveling material for PVC, ceramic tiles, carpets and various floors

[0003] The thickness of the mortar layer obtained from the existing floor construction is generally more than 3 mm. If the thickness is less than 3 mm, problems such as cracking, warping, and easy crushing by external forces will generally occur. Mortar material with good properties

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