Cement lime mortar mix ratio. For higher strength and durable structure, cement lime mortar mix are used. Cement lime mortar are composed of cement, lime, sand and water. Generally their mix ratio would be 1: 0.25: 3 (cement: lime: sand), in which 1 parts is cement, 0.25 is lime and 3 parts is washed, well graded, sharp sand mix with water.