Polymer-based film waterproofing agent mixed with cement, and preparation method thereof

Abstract

The present invention relates to a polymer-based film waterproofing agent mixed with cement which is coated on a structure requiring waterproofing and water leakage prevention so as to show excellent chemical resistance, weather resistance, crack resistance and impact resistance and high tensile strength in addition to waterproofness by preventing penetration of water into the structure, and a preparation method thereof. The polymer-based film waterproofing agent mixed with cement of the present invention comprises: 65-75 wt% of an acrylic emulsion; 12-20 wt% of micro-cement; 10-18 wt% of quicklime; 0.02-0.2 wt% of a superplasticizer; 0.02-0.2 wt% of an antifoaming agent; and 0.02-0.2 wt% of an expansion agent. The preparation method comprises: the first step of preparing 65-75 wt% of an acrylic emulsion in a liquid state in a first circular container; the second step of preparing 12-20 wt% of micro-cement in a powder state, 10-18 wt% of quicklime, 0.02-0.2 wt% of a superplasticizer, 0.02-0.2 wt% of an antifoaming agent, and 0.02-0.2 wt% of an expansion agent in a second circular container; and the third step of pouring the contents prepared in the second circular container into the first circular container to dilute the same with an electric mixer.

Description

technical field [0001] The invention relates to a polymer cement-based coating waterproofing agent and a manufacturing method thereof, in particular to coating on structures requiring waterproofing and leakproofing, so as to have the waterproof function of preventing water seepage of the structures, and have excellent chemical resistance, weather resistance, A polymer cement-based coating waterproofing agent with crack resistance, impact resistance, hydrophilicity and higher tensile stress and a manufacturing method thereof. [0002] The polymer cement-based coating waterproofing agent of the present invention can be applicable to waterproofing exposed parts of cement buildings such as roofs or parking lots and underground inner and outer walls, bridges, dams (dams) of buildings, and is not limited thereto, and also For the same purpose, it can be applied to iron structures, wooden structures, fiber reinforced plastic (FRP: Fiber Reinforced Plastics) structures, polystyrene fo...

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Problems solved by technology

[0011] Such a polymer cement-based coating waterproofing agent should be composed of cement, silica sand, ceramic minerals, etc. For waterproofing projects, the composition needs to be manufactured on the construction site, but the compounding ratio of the materials is unstable, and the mixing and compounding are negligent, so that it can become an uneven composition

[0012] Korean Registered Utility Model No. 20-0175730 proposed as a solution to the above-mentioned problems is composed of 10 to 30 parts by weight of Portland cement or blast furnace cement and a water-dispersible cement with a solid content of 40 to 50 parts by weight. 20-50 parts by weight of acrylic emulsion, 30-60 parts by weight of siliceous silica sand below 160 mesh, sodium fluorosilicate, hydroxyhydrocarbon acid and its salt, sodium dextranate, sucrose, polysaccharides , 0.5-1.5 parts by weight of sugar alcohol, 1-10 parts by weight of water, color aids and thickeners, preservatives, heat-resistant aging preventers, ozone-resistant preventers, and 0.5-5 parts by weight of ultraviolet stabilizers, but such The disadvantage of the prior art is that it uses various types of retarders that inhibit the hydration reaction, and it is the same point that the admixture (emulsion polymer) and the powder (inorganic powder) are finally stirred on site, so there is a problem due to double operations. The rise of labor costs and the disadvantages of increasing costs due to the abuse of unnecessary materials

[0013] In addition, Korean Patent Registration No. 10-0406212 suggests heating 35-55 parts by weight of water at 40-50°C, and adding 5-10 parts by weight of nonionic surfactant and 40-60 parts by weight of calcium stearate. and carry out emulsification dispersion, and mix with the acrylic acid emulsion resin copolymer of 180~200 weight parts, thus manufacture the step of emulsion A agent; And mix No. 7 silica sand 50~70 weight in 100 weight parts of white Portland cement part, 5~9 parts by weight of chromium oxide and 0.1~0.5 parts by weight of polyethylene glycol-ether sodium sulfate and the B agent manufactured are mixed with the above-mentioned A agent in a weight ratio of 1:0.25, but as the above-mentioned prior art, use It is difficult for the person to directly manufacture the emulsion A agent, and it is the same as the above-mentioned prior art that finally needs to carry out coordination and stirring operations on the spot

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