Preparation method of inorganic binder sand-based water permeable brick and water permeable brick

Abstract

The invention discloses a preparation method of an inorganic binder sand-based water permeable brick and a product. The invention belongs to the field of building materials. Facing sand which is moderate in particle size, narrow in distribution range and good in particle shape is adopted as aggregate, flowability of the facing sand is more balance, and the contact area between the facing sand andcement is increased, so that the pore uniformity of a surface layer and the bonding strength between adjacent sand grains are improved; besides, the number of times of addition and addition time points of water, cement, facing sand and a backing material in the surface material and a backing material are changed, the binding force and the pore structure between the cement and the facing sand and between the cement and the backing material are changed, the contact area between the cement and the water is increased through a two-time water-cement adding method, the cement is more sufficiently hydrated, and the setting strength of the cement is improved. The method solves the problem that the strength, wear resistance and water permeability of the existing inorganic binder sand-based water permeable brick cannot be considered at the same time, and also solves the problem that the weather resistance and service lifetime of the existing sand-based water permeable brick are reduced as the strength, wear resistance and water permeability of the existing sand-based water permeable brick are improved by adopting an organic binder.

Description

technical field [0001] The invention belongs to the field of building materials, and more specifically relates to a preparation method and product of an inorganic binder sand-based permeable brick with high performance and simple composition. Background technique [0002] With the continuous advancement of urbanization, the number and scale of cities have grown rapidly. In the planning and design of urban construction, in order to improve the appearance of the city and improve the passability of the road surface, the road surface is usually covered with impermeable concrete layers, asphalt or concrete bricks. These hardened road surfaces block the heat of the urban surface and the atmosphere In exchange with water, it is also difficult for rainwater to penetrate into the underground soil, causing serious water shortage in the surface soil, resulting in a significant increase in the cost of urban landscaping, and at the same time increasing the risk of urban waterlogging and ...

AI Technical Summary

Problems solved by technology

[0008] Therefore, it is necessary to develop a preparation process for high-performance inorganic binder sand-based permeable bricks to improve the water permeability, strength and wear resistance of inorganic binder sand-based permeable bricks to overcome the existing resin binder sand-based permeable bricks. The problems of high brick cost, poor weather resistance, many components, complicated process and difficult operation

Images