Sand is the most abundant ingredient in the mix. The powdered cement and lime are the glue that holds the sand together and allows the mortar to bond to each brick (or concrete block, stone or other ...

Report shows mortar device and mortar-making equipment found in Derry. Also material for Claymore Mine. The block of flats in the Bogside where find was made. The site of bomb attack near flats ...

Traditional tuckpointing is a common practice for restoring historic brick homes, but it can make any brick structure with ...