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首页> 外文会议>International Conference on Soil Mechanics and Geotechnical Engineering(16 ICSMGE) vol.3; 2005; Osaka(JP) >Physico-chemical aspects of cementitious slurry design for the stabilisation of reactive soils
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Physico-chemical aspects of cementitious slurry design for the stabilisation of reactive soils

机译：用于稳定反应性土壤的水泥浆设计的理化方面

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摘要

The physico-chemical implications of cementitious stabilisation across a range of soil geochemical conditions have been addressed to rationalise the current state of practice. The processes that influence the gain in soil characteristics include the short-term flocculation of clay particles that stabilises the expansive nature of moisture-sensitive soils, and the occurrence of pozzolanic reaction to give cementitious products. The proposed approach to slurry design is based on assessing the potential for these two processes in the soil chemistry and mineralogy and matching a complementary cementitious additive type and concentration. Ten soils have been collected and assessed using the Unified Soil Classification System and the Great Soil Group Classification System. The former classification system is used to express the plasticity characteristics of the soil deposit. The latter system is used by agricultural scientists to express the profile development of soil deposits, and provides a convenient source for gaining an appreciation of site geochemistry without deferring to expensive laboratory tests. The two systems can be used to determine an appropriate slurry composition to affect a desired geotechnical response. This will improve the efficiency of the stabilisation routine.
机译：已经解决了在各种土壤地球化学条件下水泥稳定的物理化学影响，以使当前的实践状态合理化。影响土壤特性增加的过程包括粘土颗粒的短期絮凝（该絮凝可稳定对水分敏感的土壤的膨胀性），以及发生火山灰反应以生成胶结产品。提出的泥浆设计方法是基于评估这两个过程在土壤化学和矿物学中的潜力，并匹配互补的胶结添加剂类型和浓度。使用统一土壤分类系统和大土壤组分类系统收集并评估了十种土壤。前一种分类系统用于表达土壤沉积物的可塑性特征。农业科学家使用后一种系统来表达土壤沉积物的剖面变化，并提供便利的资源来获得对现场地球化学的赞赏，而不必依赖昂贵的实验室测试。这两个系统可用于确定合适的浆液成分，以影响所需的岩土工程响应。这将提高稳定程序的效率。

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