The time factor, and also a limited budget, prevented an exhaustive test
programme, and investigation was limited to the testing of a range of mortar mixes
incorporating various additives and using the two grades of mesh available on the
framework of rods already selected. The cement Used for the tests was a locally
produced modified Portland Cement, type II, which possesses resistance to sulphate
attack. A natural fine river sand from the area of construction was selected. This