The invention relates to premixed mechanized spraying
mortar. The premixed mechanized spraying
mortar is characterized by being prepared from, by weight, 60-80 parts of aggregates, 10-15 parts of 42.5
Portland cement, 8-20 parts of
fly ash, 1-3 parts of redispersible latex
powder, 0.5-2 parts of
cellulose ether, 0.1-0.5 part of wood fibers, 0.02-0.05 part of an air entraining agent and 0.05-2 parts of a super
lubricant. According to the premixed mechanized spraying
mortar, mortar
rheology improvement is conducted by adopting
machine-made sand taking limestone as mother rock as the aggregates, adopting the
cement as a cementing material, adding the
fly ash capable of improving the construction performance and
doping an additive, and the mortar is not delaminated, not bled, not dispersed and not separated and is good in cohesiveness and extremely little in springback and mortar falling in the spraying construction process.