Road surface structure of rolling flexiable fibre cement concrete and construction method thereof

Abstract

The present invention relates to road structure and construction technology, and is especially road structure of rolled flexible fiber cement concrete and its construction process. The base layer of rolled flexible fiber cement concrete and paved on the foundation layer is formed through mixing flexible fiber, cement and water to form cementing material, adhering broken stone, sand, stuffing, etc with the cementing material, and rolling. The rolled flexible fiber cement concrete has obviously improved early plastic shrinking, dry shrinking and hot shrinking performance, obviously raised anticracking performance, toughness, impact strength, frost resistance and erosion resistance, and doubled antifatigue performance. The road with the rolled flexible fiber cement concrete structure has the features of simple construction, fast construction, short curing period, wide application range and raised performance.

Description

1. Technical field [0001] The invention relates to pavement engineering such as road engineering and a construction method thereof, in particular to a rolling-compacted flexible fiber cement concrete pavement structure and a construction method. 2. Background technology [0002] Background technology of cement concrete material and its construction method [0003] 1. (Pouring) cement concrete [0004] Cement concrete is a well-known building material. Although the development of concrete has only a history of more than 100 years, it has become the most widely used and used building material in the world, and it can be seen almost everywhere. Cement concrete uses cement paste of inorganic materials as the adhesive material to bond gravel and sand. Plastic cement concrete has a certain fluidity. In order to ensure the compactness of the solidified concrete, the vibrating process is generally used when pouring plastic concrete. After the cement slurry solidifies, it forms con...

AI Technical Summary

Problems solved by technology

[0007] The current fiber cement concrete materials have the following main problems in use: when the fiber type adopts steel fibers with high elastic modulus, on the one hand, due to the large amount of fibers in the steel fiber cement concrete (about 78kg per cubic meter of concrete) steel fiber), resulting in high cost of steel fiber cement concrete, greatly increasing the construction cost

The engineering application of steel fiber roller compacted cement concrete pavement structure in foreign countries shows that the performance and durability of the pavement have been improved and improved. Even higher), the cost is expensive, and rigid steel fibers are mixed into the roller compacted concrete with less water content, the fibers are not easy to disperse, the mixing is difficult, and the construction is not convenient. Therefore, the steel fiber roller compacted cement concrete Large-scale promotion and application are subject to certain restrictions

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