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Earth Building : Methods and Materials, Repair and Conservation - Laurence Keefe

Earth Building

Methods and Materials, Repair and Conservation

Paperback

Published: 30th November 2005
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Buildings with load bearing earth walls were once wide spread throughout Britain and many thousands, including some dating from the fourteenth and fifteenth centuries, still survive. Earth is ultimate form of "green" building construction, creating no environmental pollution and consuming virtually no energy. Subsoil can be dug from on or near the site to construct building that will meet contemporary needs and comply with current building regulations.
This book explains, in fairly simple terms, the engineering properties of earth as a construction material. It describes, evaluates and compares the various methods earth construction and explains the failure mechanisms of mass earth walls and how to identify building defects. It also discusses, in some detail, how mass earth construction can achieve compliance with current building regulations and illustrates appropriate repair methods based upon case studies of actual building failures and major structural repairs.
Professionals such as architects, builders, surveyors and conservation officers should find this a good reference. It is also a methodically presented text for students and an authoritative guide for self-builders.

'This book is highly recommended to practitioners, academics and enthusiasts of earth building techniques in general ... This book will certainly be of great interest to conservationists working in the field and to home owners.' - Building Engineer

'This book has been eagerly awaited, and is not a disappointment ... [it] provides a well argued and sound base for action.' - Cornerstone

'this is a clearly written book ... and it should suffice for people who themselves wish to engage in the construction of earth houses.' - Architectural Science Review

Earth Construction: Methods and MaterialsIntroduction: Earth as a ''Green'' Building MaterialSome terms used in the environmental assessment of building materials and construction methods
The performance of earth based materials
Earth Building in Britain
InternationalContext and Historical Background
British earth building in an international context:A brief history
The earth building revival
Earth buildings in Britain - types and distribution
Earth walling types
Wet mix laid in situ (cob and mudwall)
Mud and studClay lump
Rammed earth
The distribution of earth buildings in BritainIreland
WalesNorth West England/South West Scotland
North and East Scotland
LincolnshireEast MidlandsEast Anglia
Buckinghamshire and OxfordshireSouth and South West England
Summary
The Raw Material: Soils for Use in Building
Earth as a construction material
Classification of SoilsSoil classification in detail: identification, analysis and testing
Identification of soil type
Particle size distribution
Sedimentation analysis
The clay fractionSoil consistencySoil expansiveness
Compressive strengthSoil Density and porosity
Clays and aggregates, including chalk
Stone and grave;lSand
SiltClayChalk
Earth Construction 1: Preparation and Mixing
Constructing mass earth and earth block walls
First, find your soil...Soil stabilization
Modifying soils
Storage of soils on siteSoil preparation and mixing
The use of organic fibre reinforcement
Wet methods - cob, cob blocks, clay lump and adobeCob mixing
Mixing procedure for adobe, clay lump and cob blocks
Fabrication of mud bricks and cob bocks
Compaction methods - rammed earth (pisè) and compressed soil blocks
Rammed earth
Compressed soil blocks
Foundations and plinths (underpin courses)
On-site access and safety
Earth Construction 2: The Building ProcessCob wall construction
Tools and equipment
Forming door and window openings
Placing the cobA note on shuttered cob
Placing the cob (continued) - fixings and structural
Supports
Notes concerning shrinkage and settlement in Mass earth walls
Fireplaces and chimney stacks
Building with rammed earth
FormworkMethods of compaction
Building with earth blocks and clay lump
Earth based finishes for earth walls
Composite earth/lime renders
Mixing and application
Paint finishes
Standards and Regulations
Introduction
Planning legislation, policies and guidance
Building Regulations
The Building Regulation Approved Documents
Approved Document to support Regulation 7 - Materials and workmanship
Approved Document A - Structure
Approved Document B - Fire safety
Approved Document C - Site preparation and resistance to moisture
Approved Document E - Resistance to the Passage of sound
Approved Documents L1 and L2 - Conservation of fuel and power
Technical standards and codes of practice for earth wall construction
The Conservation, Repair and Maintenance of Earth Buildings
Introduction
Historical background - public perception of earth buildings
Why preserve earth buildings: the need for conservation.Statutory protection
The Principal Causes of Failure in Earth Walls and How to Recognise The
Inherent defects associated with original construction materials and methods
Walls, plinths and foundations
Roofs, carpentry and other building elements
Problems arising from later alterations and interventions
Alterations to roofs
Alterations to walls
The use of inappropriate materials and ineffective repair methods
External interventions
Internal alterations
The need for maintenance
Physical damage from external sources
Ground settlement (subsidence)
Plant and rodent damage
Erosion, abrasion and impact damage
Dampness in earth walls and associated building
Materials
Wall finishes - plasters, renders and paints
The measurement of dampness in earth walls, plasters and renders
Hygroscopicity, soluble salts and freeze/thaw conditions
Determination of critical moisture content in earth walls
The Diagnostic Survey and Repair of Earth Buildings
A suggested diagnostic survey p
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9780415323222
ISBN-10: 0415323223
Audience: Professional
Format: Paperback
Language: English
Number Of Pages: 196
Published: 30th November 2005
Publisher: TAYLOR & FRANCIS
Country of Publication: GB
Dimensions (cm): 23.37 x 15.7  x 1.22
Weight (kg): 0.33
Edition Number: 1