Through adding low viscidity HPMC, workable performance of the dry-mixed mortar can he greatly improved, and this dry-mixed mortar can well solve the crack problem of wall.

• 通过掺入低粘度的羟丙基甲基纤维素后，砂浆的施工和易性能得到了极大的改善，可以较好地克服新型墙材出现的墙体裂缝等问题。