Sand
Sand is a natural sediment of granular, mainly siliceous, products of rock weathering. Particles are smaller than 2 mm, are […]
Glossary
Proportioning materials
The materials used for mass concrete for foundations were often measured out by volume, the amount of sand and coarse
Glossary
Fine aggregate and coarse aggregate
Fine {aggregate} is natural sand which has been washed and sieved to remove particles larger than 5 mm and coarse
Glossary
Resistance to ground moisture
Up to about the middle of the nineteenth century the ground floor of most buildings was formed on compacted soil
Glossary
Grid system
This is an alternative to the herring bone system for draining one way slopes where branch drains are fed by
Glossary
Herring bone system
In this system, illustrated in Fig. 19B, fairly regular runs of drains connect to spine drains that connect to a
Glossary
Subsoil drains
Subsoil drains are used to improve the run off of surface water and the drainage of ground water to maintain
Glossary
Materials for damp-proof membrane
The materials used as {damp-proof membrane} must be impermeable to water both in liquid and vapour form and sufficiently robust
Glossary
Sulphate resisting Portland cement
This {cement} has a reduced content of aluminates that combine with soluble sulphates in some {soils} and is used for