Pavement concrete for municipal construction engineering

Abstract

The invention discloses pavement concrete for municipal construction engineering. The pavement concrete comprises the following raw materials in parts by weight: 40-50 parts of cement, 10-15 parts ofdiatomite, 5-10 parts of glycerol monostearate, 3-5 parts of sodium monofluorophosphate, 3-5 parts of sodium alginate, 6-8 parts of a water reducing agent, 10-15 parts of an expansion fiber anti-cracking waterproof agent, 3-5 parts of amorphous dodecacalcium heptaaluminate, 4-6 parts of a silane coupling agent, 1-2 parts of vaseline, 4-6 parts of an acrylic emulsion, 1-2 parts of fatty alcohol-polyoxyethylene ether, 1-2 parts of an antifoaming agent and 30-40 parts of water. Compared with the prior art, the pavement concrete has advantages that: by adding the diatomite and the diatomite withinthe particle size range of 3-12 microns, the phenomenon that cracks are found in concrete can be well avoided, and the strength of the concrete is improved; the glycerol monostearate can improve strength of the concrete. In conclusion, the pavement concrete for municipal construction engineering prepared by the scheme has the performance advantages of high toughness, impact resistance, crack resistance, wear resistance, skid resistance and the like.

Description

technical field [0001] The invention relates to the technical field of municipal construction roads, in particular to road concrete for municipal construction projects. Background technique [0002] At present, the highway pavement materials in my country's municipal construction projects mainly include asphalt concrete and cement concrete. Seasonal anti-deformation ability is poor, it is easy to be brittle and cracked at low temperature in winter, and poor durability. Cement concrete pavement has the advantages of long service life, small maintenance workload, low resource consumption, simple construction, and strong adaptability to traffic levels and environments. However, ordinary concrete is a typical brittle material with low bending and tensile strength and deformation ability. Therefore, the cement concrete pavement has high brittleness, poor driving comfort, weak impact resistance and fatigue resistance, easy brittle fracture, and premature surface structure damage. ...

AI Technical Summary

Problems solved by technology

However, ordinary concrete is a typical brittle material with low bending and tensile strength and deformation capacity. Therefore, the cement concrete pavement has high brittleness, poor driving comfort, weak impact resistance and fatigue resistance, easy brittle fracture, and premature surface structure damage.