Alkali-inspired slag-fly ash cementitious materials were used to replace the traditional cementitious bonding mortar to prepare bonding mortar suitable for rapid factory masonry assembly ALC block walls,and the effects of alkali content in the gel component on the setting time,compressive strength,and tensile bond strength of the mortar,as well as the effects of the adhesion-enhancing component on the tensile bond strength of the bonding mortar,and the effects of the water-retaining component on the mechanical and workability of the bonding mortar,were investigated through experiments.The effect of water retention component on mechanical properties and working properties of bonded mortar.The test results show that when the alkali content is above 5%,the compressive strength of 6 h,1 d and 28 d can meet the requirements of the set index,and the tensile bond strength reaches the maximum value when the dosage of viscosity-enhancing component is 1.2%,and the tensile bond strength of 6 h and 14 d is 0.59 and 0.62 MPa,respectively.Taking into account the performance of the mortar,the construction time and the cost of materials,the alkali content of the gel component should be controlled at 5%～6%,and the dosage of viscosity-enhancing component is 0.8%,and the dosage of water retaining component was 0.3%.
关键词
装配式/低碳/砌筑砂浆/早期强度高
Key words
assembly type/low carbon/masonry mortar/high early strength
维普
万方数据