A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dry-mixed mortar, preparation method thereof and mortar
The invention provides dry-mixed mortar, a preparation method thereof and mortar, and belongs to the technical field of buildings. The invention provides dry-mixed mortar which comprises the following components in percentage by mass: 47-50% of fly ash; 47-50% of coal ash and slag; 0.5 to 0.7 percent of rubber powder; 1-2% of cellulose ether; and 0.5 to 0.7% of redispersible latex powder. Holes are formed in the coal ash slag after combustion, air can be released at high temperature to resist expansion, and the wrapped air can play a role in buffering during low-temperature shrinkage, so that the surface mortar cannot crack, water is prevented from permeating through cracks, the service life of the mortar is prolonged, and the weather resistance of the mortar is improved. The result of the embodiment shows that the mortar provided by the invention has the compressive strength of 20 MPa, the tensile adhesive strength of 0.22 MPa, the mass loss in a freezing resistance experiment of 2%, the 2h consistency loss rate of 10% and the heat conductivity coefficient of 0.56 W/(m.K).
本发明提供了一种干粉砂浆及其制备方法、砂浆，属于建筑技术领域。本发明提供了一种干粉砂浆，以质量分数计，包括以下组分：粉煤灰47～50％；煤灰渣47～50％；胶粉0.5～0.7％；纤维素醚1～2％；可再分散性乳胶粉0.5～0.7％。煤灰渣经过燃烧后内部有孔洞，高温时将空气能释放出来能抵御膨胀，低温收缩时包裹的空气能起到缓冲，使表面砂浆不会开裂，从而防止水分通过裂纹进行渗透，提高了砂浆的使用寿命和耐候性。实施例结果表明，本发明的砂浆抗压强度为20MPa，拉伸粘结强度为0.22MPa，抗冻性实验中质量损失为2％，2h稠度损失率为10％，导热系数为0.56W/(m·K)。
Dry-mixed mortar, preparation method thereof and mortar
The invention provides dry-mixed mortar, a preparation method thereof and mortar, and belongs to the technical field of buildings. The invention provides dry-mixed mortar which comprises the following components in percentage by mass: 47-50% of fly ash; 47-50% of coal ash and slag; 0.5 to 0.7 percent of rubber powder; 1-2% of cellulose ether; and 0.5 to 0.7% of redispersible latex powder. Holes are formed in the coal ash slag after combustion, air can be released at high temperature to resist expansion, and the wrapped air can play a role in buffering during low-temperature shrinkage, so that the surface mortar cannot crack, water is prevented from permeating through cracks, the service life of the mortar is prolonged, and the weather resistance of the mortar is improved. The result of the embodiment shows that the mortar provided by the invention has the compressive strength of 20 MPa, the tensile adhesive strength of 0.22 MPa, the mass loss in a freezing resistance experiment of 2%, the 2h consistency loss rate of 10% and the heat conductivity coefficient of 0.56 W/(m.K).
本发明提供了一种干粉砂浆及其制备方法、砂浆，属于建筑技术领域。本发明提供了一种干粉砂浆，以质量分数计，包括以下组分：粉煤灰47～50％；煤灰渣47～50％；胶粉0.5～0.7％；纤维素醚1～2％；可再分散性乳胶粉0.5～0.7％。煤灰渣经过燃烧后内部有孔洞，高温时将空气能释放出来能抵御膨胀，低温收缩时包裹的空气能起到缓冲，使表面砂浆不会开裂，从而防止水分通过裂纹进行渗透，提高了砂浆的使用寿命和耐候性。实施例结果表明，本发明的砂浆抗压强度为20MPa，拉伸粘结强度为0.22MPa，抗冻性实验中质量损失为2％，2h稠度损失率为10％，导热系数为0.56W/(m·K)。
Dry-mixed mortar, preparation method thereof and mortar
一种干粉砂浆及其制备方法、砂浆
ZHANG HUIJUN (author) / ZHANG ZHONGLAN (author) / WANG PENGJIA (author) / CHEN GUOQING (author)
2023-08-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Mortar, mortar formula, mortar preparation method, mortar construction method and mortar layer
| European Patent Office | 2023