Binding mortar for flexible facing bricks and preparation method thereof

The invention relates to a binding mortar for flexible facing bricks and a preparation method thereof. The technical scheme is as follows: the binding mortar for flexible facing bricks is prepared from the following components in parts by weight: 20-30 parts of cementing material cement, 60-70 parts of quartz sand, 5-10 parts of filler heavy calcium carbonate, 0.3-0.4 part of water-retaining and wetting agent, 0.05-0.1 part of anti-slipping assistant, 0.3-0.5 part of crack-resistant water-retaining fiber, 3-5 parts of redispersible latex powder, 0.1-0.2 part of water repellent and 0.05-0.1 part of dispersing agent. The binding mortar for flexible facing bricks has the advantages of low material consumption, higher construction efficiency, high binding strength and low shedding tendency. The binding mortar for flexible facing bricks especially makes up the deformation generated by shrinkage due to temperature changes, resists cracks and has the function of joint filling, thereby being an environment-friendly flexible binding mortar applicable to different climatic conditions.