High-strength pervious concrete and preparation method thereof

Abstract

The invention discloses high-strength pervious concrete and a preparation method thereof. The high-strength pervious concrete is prepared from Portland cement, modified coarse aggregate alkali-resistant glass fibers, a reinforcing agent, polyacrylamide, gravel, yellow sand, water absorption gel, an expanding agent, an adhesive and a water reducing agent. According to the invention, a preparation cavity, a first mixing tank, and a second mixing tank are arranged on the preparation table. Gravels, Portland cement, yellow sand, modified coarse aggregate, polyacrylamide and alkali-resistant glassfibers are stirred and mixed through the preparation cavity to obtain a preparation base material A, and a pair of reinforcing agents, water absorption gel, an expanding agent, an adhesive and a waterreducing agent in a mixing tank are stirred and mixed to obtain an auxiliary base material B; the preparation base material A is guided into the second mixing tank through the conveying belt, the auxiliary base material B is guided into the second mixing tank through the spiral conveying cylinder, the second mixing tank mixes the preparation base material A and the auxiliary base material B to prepare the pervious concrete, in the preparation process of the pervious concrete, manual transfer of raw materials for preparing the raw materials is avoided, and the production cost of enterprises isreduced.

Description

technical field [0001] The invention belongs to the technical field of concrete, in particular to high-strength permeable concrete and a preparation method thereof. Background technique [0002] Concrete refers to a mixture made of cementitious materials, granular aggregates, water, chemical admixtures and mineral admixtures that need to be added in an appropriate proportion, or a composite material with a stacked structure after hardening. Using cementitious material, water, fine aggregate, coarse aggregate, and when necessary, admixtures and mineral admixtures are mixed in an appropriate proportion. It is one of the most important civil engineering materials in the contemporary era. Permeable concrete is a new type of Concrete has high water permeability, which can ensure the rapid penetration of water. Under the conditions of not affecting normal work and life, the penetration of water can also effectively protect the underground water resources. [0003] For example, pa...

AI Technical Summary

Problems solved by technology

[0004] 1. The existing permeable concrete uses cement to bond stones. After the concrete is hardened, when the concrete is subjected to external forces, there is no substance inside the cement to strengthen the strength of the cement, and the bonding force between the cement and the stones is weak, and a large amount of cement appears inside the concrete. Structural cracks lead to poor strength of concrete;

[0005] 2. In the preparation process of the existing permeable concrete, the base material and the auxiliary base material are mixed through two sets of mixing equipment, and then manually transferred to the third set of mixing equipment for mixing and preparation. In the process, not only the labor intensity of the operators is high, time-consuming and labor-intensive, but also reduces the production efficiency of permeable concrete, and at the same time increases the production investment of the enterprise through multiple sets of mixing equipment;

[0006] 3. In the existing permeable concrete preparation process, there is no processing equipment for crushed stones, resulting in different sizes of crushed stones, which affects the overall water permeability of concrete and reduces the quality of concrete preparation

Images