Hi, I'm doing an extension and need to match the morter to existing brickwork. The builders used off white cement and off white sand. Q I have is what fatterning agent would they have used.
When I was bricklaying 30 years ago it was 1 grey cement, 1 fire clay (fatterning agent) and 6 washed sand And a pigment to colour. Today they use fatty sand and dont use fire clay.
Cheers &thanks in advance