Preparation method and test of wear-resistant concrete

Abstract

The invention discloses wear-resistant concrete. The concrete is prepared from the following components in parts by weight: 240 to 270 parts of ordinary Portland cement, 80 to 90 parts of slag, 618 parts of machine-made sand, 60 parts of gravel with the particle size of 5 to 10 mm, 299 parts of gravel with the particle size of 10 to 20 mm, 839 parts of gravel with the particle size of 16 to 31.5 mm, 106 to 119 parts of water and 2.88 to 4.07 parts of a water reducing agent. The wear-resistant concrete has the effects of good wear resistance and low cost.

Description

technical field [0001] The invention relates to the field of suggested materials, in particular to a preparation method of wear-resistant concrete and its test. Background technique [0002] my country's cement concrete pavement has a history of decades of development, and has become one of the important structural forms of high-grade pavement. Cement concrete pavement is widely used in all grades of highways across the country due to its advantages of high strength, good volume stability, less daily maintenance workload, simple construction machinery, strong water damage resistance, wide range of material sources, and convenience for night driving. In recent years, the traffic volume of my country's highways has increased and the speed of vehicles has accelerated, which poses a higher challenge to the wear resistance of concrete pavements. [0003] There are four main wear modes of pavement concrete, which are adhesive wear, abrasive wear, fatigue wear and erosive wear. A...

AI Technical Summary

Problems solved by technology

From the perspective of aggregates, most studies use high wear-resistant aggregates. After the slurry on the concrete surface wears and aggregates are exposed, although high wear-resistant aggregates can help improve the wear resistance of concrete, high wear-resistant bone The cost of materials is still high

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