Self-water permeable anti-surface water accumulation highway concrete

Abstract

Belonging to the field of concrete, the invention discloses a self-water permeable anti-surface water accumulation highway concrete. The making method comprises the steps of: firstly letting the staffwash, dry and cut a high-fiber plant raw material, then performing soaking in a diammonium hydrogen phosphate solution for pretreatment, and then putting the product in a high-temperature calcining furnace, and using water vapor for carbonization to increase the pore size and number of micropores on the high-fiber plant raw material, then adding porous stone and hydrosol, mixing the substances evenly to form a plant fiber water permeable mixture, and then mixing the plant fiber water permeable mixture with coarse aggregate water permeable concrete evenly by a mixer, thus obtaining the water permeable concrete capable of guiding water through the carbonized plant fiber and porous stone. The method realizes improvement of water permeability of coarse aggregate water permeable concrete, enables the coarse aggregate water permeable concrete to guide water flowing down from colored strong water permeable concrete to a next layer rapidly, the water permeability rate of concrete can be increased, and water does not accumulate on the surface of concrete easily.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a self-permeable type anti-surface water accumulation road concrete. Background technique [0002] At the beginning of the 21st century, technicians in the field of concrete in my country began to study the application of permeable concrete, and gradually used it in parks, sidewalks and other areas with low load-bearing requirements. Permeable concrete is a kind of macroporous concrete. Generally, larger particle size aggregates are used as the skeleton, and the cementing material is used to wrap the surface of the aggregate to form a skeleton, and the pores generated by the skeleton are used to achieve the purpose of water seepage. Since pervious concrete needs to ensure sufficient porous seepage channels, its load strength and wear resistance are difficult to meet the requirements. Therefore, most of the existing pervious concrete is used in auxiliary roads with low loads, which hinders...

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Problems solved by technology

[0003] Existing permeable concrete pavements such as Figure 1 As shown, it consists of colored strong permeable concrete, coarse aggregate permeable concrete, coarse sand filter layer, gravel cushion, filter geotextile and plain soil, among which the water permeability and strength of coarse aggregate permeable concrete are difficult to balance, and The pores in the coarse aggregate permeable concrete are unevenly distributed, and its water-conducting and hydrophobic efficiency is not high. When the rainfall is heavy, the coarse aggregate permeable concrete cannot quickly guide the water flowing down the colored reinforced permeable concrete to the next layer, resulting in water on concrete surface

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