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水泥改性土,是指将一定比例的水泥土掺入膨胀土土料中以改善膨胀土的性质或结构,使膨胀土丧失膨胀潜能,并在一定程度上提高土体强度或承载力。水泥改性土在膨胀土地区可以充分利用开挖料,实现土料的就地取材,减少对非膨胀土的需求,在施工中具有操作简便的特点,可以做到连续、大规模施工。本文主要对改性土填筑施工工艺和操作要点、质量控制要点作了阐述和分析。
Cement modified soil refers to a certain proportion of cement soil into the expansive soil material to improve the properties or structure of expansive soil, expansive soil loss of expansion potential, and to some extent, to improve soil strength or bearing capacity. Cement-modified soil in expansive soil area can make full use of excavated material to achieve the local materials of soil to reduce the demand for non-expansive soil in the construction has the characteristics of easy operation, can be continuous and large-scale construction. This paper mainly expounds and analyzes the construction technology and operation points of modified soil filling and the key points of quality control.