Used in a myriad of new and rehabilitation construction projects, cementitious and chemical grouts share a common category and name, but the distinct differences far outweigh the common qualities. Both grout types are used in civil applications, ranging from sewer-pipe rehabilitation to new tunnel construction, used to fill narrow cavities/cracks and rock fissures, or to permeate soils for the control of groundwater, void filling or to increase structural support. Cement and chemical grouts can differ in composition, application and cost, and are ultimately complementary products on the same projects. This article will explore when and why to use the various types of grouts and the cost range of each product.
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