Mineral powder-doped polymer waterproof mortar and using method thereof

Abstract

The invention relates to mineral powder-doped polymer waterproof mortar and a using method thereof. The mineral powder-doped polymer waterproof mortar comprises ordinary Portland cement, S95 mineral powder, S105 mineral powder, desulfurized gypsum, river sand, emulsion powder, fibers, a water reducing agent, a deforming agent and bentonite. According to the mineral powder-doped polymer waterproof mortar, the average grain diameter of the S105 mineral powder is 12-17mu m, the specific surface area of the S105 mineral powder, which is determined by a nitrogen adsorption method, is 600-700m<2> / kg, the quality factor K of the S105 mineral powder is 1.9-2.1, the S105 mineral powder has very high gelatinization activity, the gelatinization activity of the S105 mineral powder is nearly equivalent to and even slightly exceeds that of 52.5-grade ordinary Portland cement; and the average grain diameter of the S95 mineral powder is 45-52mu m, the specific surface area of the S95 mineral powder, which is determined by a nitrogen adsorption method, is 300-350m<2> / kg, the quality factor K of the S95 mineral powder is 1.9-2.1, and the S95 mineral powder has high pozzolanic activity. The strength of the motor is not reduced and even is slightly enhanced while the seepage prevention of the product is improved. The mineral powder-doped polymer waterproof mortar has the characteristics of high anti-permeability grade, good caking property, high strength, ageing resistance, alkali resistance, convenience in construction, low cost and the like and is suitable for waterproof treatment of general civil buildings, water resistance, corrosion prevention, seepage prevention and moisture prevention of general air-raid shelters and remediation and strengthening of general engineering.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a polymer waterproof mortar mixed with mineral powder and its application method. Background technique [0002] With the rapid development of my country's economy, the development of my country's construction industry is also changing with each passing day. In the rapid development process of the construction industry, the waterproof and moisture-proof problems of buildings are becoming more and more serious, and with the large-scale development of urban underground space, and a large number of underground civil air defense projects The market demand for waterproof mortar is increasing. At present, the commonly used waterproof mortars include rigid multi-layer plastering cement mortar, waterproof mortar mixed with water repellent and polymer cement waterproof mortar. These three waterproof mortars have their own shortcomings: (1) There are more cement mortar...

AI Technical Summary

Problems solved by technology

At present, the commonly used waterproof mortars include rigid multi-layer plastering cement mortar, waterproof mortar mixed with water repellent and polymer cement waterproof mortar. These three waterproof mortars have their own shortcomings: (1) There are more cement mortars for rigid multi-layer plastering The construction is complex and the labor cost is high; (2) The waterproof mortar mixed with water repellent can achieve the waterproof effect by adding water repellant to block the seepage channel and other measures. These measures have played a certain role in reducing the defects of cement mortar, but due to The internal structure of the material has not been changed, so the effect is not ideal, especially as a waterproof layer, it cannot meet the requirements of building waterproofing; (3) Polymer waterproof mortar is made by adding polymers to the mortar, and the polymers form a continuous layer in the mortar. The membrane can effectively close the connected pores, increase the compactness and crack resistance of the mortar, and thus improve the impermeability of the mortar

Polymer waterproof mortar has simple construction and good waterproof effect, but generally polymer waterproof mortar increases with the increase of latex powder within a certain range, while the impermeability level increases, and the strength of the mortar also decreases significantly, especially the compressive strength. Obvious reduction

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