1 cement, 1 sand, 6 lime

1 cement, 1 lime, 6 sand

1 lime, 1 sand, 6 cement

1 lime, 1 cement, 6 clay

Cement 1, Fine aggregate 2, Coarse aggregate 4

Cement 1, Fine aggregate 3, Coarse aggregate 6

Cement 1, Fine aggregate 4, Coarse aggregate 8

Cement 1, Fine aggregate 2, Coarse aggregate 2

Copper sheet

Hot Bitumen

Bricks

Gramite

48% strength

60% strength

75% strength

85% strength

Mason's square

Builders square

Try square

Bevelled square