Building basement filtering concrete and preparation method thereof

Abstract

The invention discloses building basement filtering concrete and a preparation method thereof. The building basement filtering concrete is prepared from the following raw materials in percentage by mass: 70% to 80% of coarse aggregate, 13% to 20% of cement, 0.5% to 1.0% of reinforcer, 0.13% to 0.4% of high-strength inorganic fiber, 0.4% to 1.2% of rubber powder and 4% to 6% of water, wherein the particle diameter of the coarse aggregate is 5 to 20 mm, and the reinforcer is a compound additive of an active nano silicon aluminum material and organic functional molecules. According to the filtering concrete disclosed by the invention, the reinforcer, the inorganic fiber and the rubber powder are utilized as modifiers, so that a synergistic effect is achieved, and strength and crack resistanceof the filtering concrete are improved; meanwhile, water permeability, impact resistance and anti-block performance of the filtering concrete are improved. The filtering concrete disclosed by the invention can be applied to a middle layer of a terrace system of a building basement slab, can achieve a bearing effect and simultaneously can achieve filter water flow guiding and water vapor dredgingfunctions; ponding and dampness of a surface layer of the basement are avoided, and the situation that a resin terrace of the basement is damaged by water seepage or water vapor is prevented.

Description

technical field [0001] The invention relates to the field of special functional concrete. Specifically, the invention provides a filter concrete for building basements and a preparation method thereof. Background technique [0002] At present, the basement garages of many buildings have cracked floors after a period of use, and groundwater seepage and water accumulation are serious problems; the main seepage point is on the floor. Usually the basement floor is divided into flexible waterproof layer, concrete structure self-waterproof layer and floor surface layer from bottom to top. The flexible waterproof layer has problems such as easy damage, easy aging, and poor durability, and once a part is damaged, the entire area will lose its waterproof ability. As a heterogeneous building material, concrete itself contains a large number of pores and micron-scale cracks. At the same time, as a brittle material, various factors such as temperature stress, shrinkage stress, and unev...

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Problems solved by technology

[0010] The various raw materials of the present invention cooperate with each other to have good water permeability and impact resistance, and are not easy to crack, not easy to block, and have good durability. The structural system has no water filtration and diversion function, and it is easy to crack, leak and accumulate water

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