Large-particle-size cement stabilized macadam and method thereof

Abstract

The invention discloses large-particle-size cement stabilized macadam and a method thereof. The large-particle-size cement stabilized macadam comprises the following components in parts by weight: 25-35 parts of first broken stone; 20-30 parts of second broken stone; 15-25 parts of third broken stone; 20-30 parts of stone chips; 1-8 parts of cement; and 1-8 parts of water, wherein the particle size of the first broken stone is 19-37.5 mm, the particle size of the second broken stone is 9.6-19 mm, and the particle size of the third broken stone is 4.75-9.5 mm; the method comprises the following steps: S1, preparing raw materials of broken stone, stone chips, cement and water; s2, mixing a mixture; before the mixture is formally blended, blending equipment is debugged, and trial blending is carried out, so that the particle composition and the water content of the mixture meet the specified requirements; the water content of the aggregate is checked before mixing every day, the construction mix proportion of the day is calculated, all the materials prepared in the step S1 are classified according to the mix proportion and put into all stock bins, and the blending proportion of all the materials is controlled through the stock bins; coarse aggregate, fine aggregate, cement and water in each bin are mixed in th mixing bin according to a ratio; s3, performing vibration forming of the vibration mixing cylinder, and finally discharging through a conveying belt; the invention provides the cement stabilized macadam which is low in cost, high in strength, anti-cracking and anti-freezing and the method thereof.

Description

technical field [0001] The invention relates to the technical field of cement-stabilized gravel, in particular to a cement-stabilized gravel with a large particle size and a method thereof. Background technique [0002] With the continuous development of my country's economic construction, the traffic carrying capacity of my country's urban roads continues to increase, the number of vehicles passing on the roads is increasing day by day, and the requirements for road construction quality and road bearing capacity are also constantly increasing. At the same time, the requirements for road performance are also gradually increasing. In the process of road base construction, cement stabilized gravel is usually selected as the main construction method of the project. [0003] Cement-stabilized crushed stone uses graded crushed stone as aggregate, uses a certain amount of cementitious material and sufficient mortar volume to fill the gaps in the aggregate, and paves and compacts a...

AI Technical Summary

Problems solved by technology

[0004] At present, the state has also made corresponding improvements and enhancements to the road structure layer standards in the road code, but still limits the maximum particle size of cement-stabilized gravel aggregates to no more than 31.5mm

[0005] In summary, the prior art still lacks a cement-stabilized gravel and method with low cost, high strength, crack resistance and antifreeze.

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