The invention discloses waterproof dry-mixed
mortar and a production process thereof, and belongs to the technical field of
mortar production. The dry-mixed mortarcomprises the following components in percentage by weight: 40%-60% of ordinary
Portland cement, 30%-50% of mixed sand, 1%-1.5% of redispersible
polymer rubber
powder, 0.2%-1.2% of an organic
silicon waterproof agent, 0%-0.3% of fibers, 0.6%-1.5% of a water-retaining
thickening agent and the balance of an additive. The dry-mixed mortaris prepared through the following processes: screening all components of the mixed sand through a screening device, performing metering according to a ratio, and then performing mixing; metering and mixing the
starch ether, the
cellulose ether and the
bentonite according to the proportion to obtain a water-retaining
thickening agent; metering and mixing ordinary
Portland cement, screened and mixed sand, redispersible
polymer rubber
powder, an organic
silicon waterproof agent, fibers, a water-retaining
thickening agent and an additive according to a ratio to prepare a dry mixture; and dispersing and packaging the dry mixture to obtain a finished product. The performance of the
mortar in all aspects is improved, a certain
raw material cost can be saved, construction is convenient, the waterproof performance and the
cracking resistance are excellent, and the durability is good.