On thc basis of thc surface features of sand - lime bricks, rational mixturf ratios ofmasonry mortars for sand - lime bricks are studicd, rand cement mortars and composite cement- limemortars of different grades ranging from 2.5 to 15 MPa are prepared.

• 本文根据灰砂砖的表面特点，研究了灰砂砖砌筑砂浆的合理配比。 做成标号为2.；5到15MPa的多等级水泥砂浆和水泥石灰混合砂浆。