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A road base construction method in high temperature season with cement-stabilized gravel mixture

A technology for cement-stabilized crushed stone and road base, which is applied to roads, roads, cement mixing devices, etc., can solve the problems of insufficient effective construction time of cement-stabilized crushed stone mixture, and achieve sufficient construction delay time, sufficient construction time, and guarantee. The effect of engineering quality

Active Publication Date: 2021-11-23
北京城建华晟交通建设有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cement-stabilized macadam mixture road base construction method in high-temperature seasons, to solve the problem of insufficient effective construction time of cement-stabilized macadam mixture in high-temperature seasons and when ordinary non-retarding cement is used

Method used

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  • A road base construction method in high temperature season with cement-stabilized gravel mixture
  • A road base construction method in high temperature season with cement-stabilized gravel mixture
  • A road base construction method in high temperature season with cement-stabilized gravel mixture

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Experimental program
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Effect test

Embodiment

[0053] A cement-stabilized crushed stone mixture comprising cement, sucrose solution, stabilized crushed stone coarse aggregate and fine aggregate,

[0054] Its component mass ratio is as follows:

[0055] Cement: 3%-5%;

[0056] Stabilized gravel coarse aggregate: 60%-65%;

[0057] Fine aggregate: 35%-40%;

[0058] The rest is sucrose solution.

[0059] This method of road base construction in high temperature season using cement-stabilized gravel mixture, the construction steps are as follows:

[0060] Step 1, mix ratio design of cement-stabilized gravel mixture:

[0061] Adjust according to the results of on-site sampling and screening, among which:

[0062] The gradation of the aggregate is close to the aggregate gradation curve of the indoor mix ratio design, and the deviation range of the sieve hole is controlled within ±3%;

[0063] According to the on-site construction temperature, determine the cement quality, water quality and the amount of sucrose in the water t...

Embodiment 1

[0097] Embodiment 1: The cement stabilized crushed stone mixture is composed of the following mass percentage components, cement: 5%, sucrose: 0.1‰ (accounting for cement); stabilized crushed stone coarse aggregate: 60%-65%, fine aggregate: 35% -40%.

Embodiment 2

[0098] Embodiment 2: The cement stabilized crushed stone mixture is composed of the following mass percentage components, cement: 4.5%, sucrose: 0.2‰ (accounting for cement); stabilized crushed stone coarse aggregate: 60%-65%, fine aggregate: 35% -40%.

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Abstract

The invention relates to a road base construction method in high temperature season using a cement-stabilized crushed stone mixture. The mixture includes cement, sucrose solution, stabilized crushed stone coarse aggregate and fine aggregate. The invention blends sucrose into the cement-stabilized gravel mixing water, which can delay the hydration reaction of cement, realize the retarding effect of non-retarding cement, and make the cement-stabilized gravel mixture have sufficient construction delay time, and the construction delay time can be shortened. According to the flexible adjustment of the dosage, the cement-stabilized crushed stone mixture can have sufficient construction time even in the case of using ordinary cement in the hot summer, so as to ensure the quality of the project.

Description

technical field [0001] The invention belongs to road engineering, in particular to a road base construction method. Background technique [0002] In road engineering construction, cement-stabilized macadam is a relatively common material structure as the base layer, and it is widely used in various places. However, with the adjustment of the production capacity of the cement industry, the slow-setting cement specially used for roads is no longer produced in many areas due to its small application range, forcing the road base construction in some areas to use conventional building structure cement, and the setting time of this cement It is very short, usually 1.5~2 hours, which cannot meet the needs of the road base construction delay time of usually 2~3 hours, and affects the quality of base construction. [0003] Due to the limited construction period, the construction of the road base is inevitable in high temperature seasons. In high temperature seasons, the effective co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/00C04B28/00B28C5/08
CPCB28C5/08C04B28/00C04B2111/0075E01C3/00C04B24/10C04B14/02
Inventor 张勇刘飞付玉恒常改毛何迪管建华齐永超李志强
Owner 北京城建华晟交通建设有限公司
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