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Hydraulically treated soils in residential construction (RR12)

Overview

Some soils provide an unsuitable substrate for residential foundations and floors. This report gives guidance on some emerging site treatments (specifically the addition of cement, coal fly ash, ground granulated blastfurnace slag and lime) to improve the load-carrying capacity of soils which have historically been considered too marginal for development without major re-engineering of foundations or deep pile solutions.

Summary of content

Hydraulically treated soils in residential construction (RR12) contains the following:

Introduction

Overview, background and purpose of the report.

Principles of soil treatment

Introduces the main types of soil treatment and associated European Standards and Construction methods. Sets out the current guidance and specifications in highways (where there has been considerable experience of soil treatment) and experience so far in residential use.

Design

Sets out design considerations and a suggested protocol for housing.

Realisation in practice

Site investigations, construction, treatment mixture design, construction control, verification of treatment.