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Concrete curbs are nowadays one of the most widely used concrete components in cities and have the task of restricting spaces, beautifying cities and guiding surface waterways. Concrete curbs are generally manufactured in both traditional and Percy methods.
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Introduction
Structural lightweight concrete has an in-place density on the order of 1400 to 1900 kg/m3 compared to normal-weight concrete with a density in the in the range of 2000 to 2400 kg/m3. For structural applications, the concrete strength should be greater than 17 MPa. The concrete mixture is made with lightweight coarse aggregate. In some cases, a portion or the entire fine aggregate may be a lightweight product. Lightweight aggregates used in structural lightweight concrete are typically expanded shale, clay or slate materials that have been fired in a rotary kiln to develop a porous structure.
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