Process for constructing long intermittent layer in wind, dry, hot and high-evaporation environments

Abstract

The invention provides a process for constructing a long intermittent layer in wind, dry, hot and high-evaporation environments. The process comprises the following steps of: cleaning a concrete surface; and paving a layer mix, wherein the cleaning treatment comprises flushing treatment with high-pressure water and soaking treatment; the layer mix is paved by the following steps of: paving a layer of cement paste with the thickness of 2-4 millimeters; and paving mortar of 1-2 centimeters. Mortar paved around a junction surface is preferably acrylic emulsion mortar. Preferably, the thickness of the cement paste is 3 millimeters, and the thickness of the mortar is 1.5 centimeters. The process for constructing the long intermittent layer in the wind, dry, hot and high-evaporation environments is simple, and is easy to operate. By adopting the process, negative influences of environmental factors such as wind, dryness, heat, high evaporation and the like can be restrained, and horizontal cracks on the long intermittent layer are avoided.

Description

technical field [0001] The invention relates to a construction technology of a long intermittent layer under wind, dry, heat and high evaporation environment, and the long intermittent layer is a bonding layer between two layers of roller compacted concrete. Background technique [0002] In the process of pouring roller compacted concrete, due to various factors, the time interval between the upper layer of roller compacted concrete and the lower layer of roller compacted concrete is longer, so the joint surface of the two layers of concrete is a long intermittent layer. The cold construction joints are formed on the long intermittent layer, and the cold construction joints must be treated on the joint surface, otherwise, horizontal cracks are likely to appear. Before paving the long intermittent layer, generally use methods such as brushing and flushing to remove the laitance and loose aggregate on the surface of the concrete in the early stage; the surface layer is treated...

AI Technical Summary

Problems solved by technology

Various unfavorable factors of wind, dryness, heat and high evaporation environment may have an impact on the appearance of horizontal cracks. If the adverse effects of the environment are directly controlled by means of humidification and cooling to reduce evaporation, it is difficult and difficult to achieve. It is necessary to find A simple and effective way to avoid horizontal cracks

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