The results indicate that in comparison with plain cement mortar, the bending strength of the mortars modified with soap_free emulsion of VAC/DMC[ m (p)/ m (c)=0.1] increases by 77%, better than with PVAC.

• 研究表明 ；! 与普通水泥砂浆相比 ；VAC/DMC阳离子型无皂乳液改性砂浆 (聚灰比为 0 .；1时 )的抗折强度较普通砂浆够提高 77%25；其改性效果明显好于普通VAC乳液；表明用阳离子无皂乳液改性水泥性能能够取得良好效果。