Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a concrete anti-crack activator and a preparation method thereof. The concrete anti-crack activator is prepared by using water, sericite powder, glutinous rice starch, formaldehyde, sodium hydroxide, an acrylic latex solution and a mud inhibitor as raw materials through a certain method. According to the invention, the slump flow activity of the concrete can be increased by 12 mm through the concrete anti-crack activator, so that an expanding agent can be promoted to increase expansion under a viscous moisture retention condition, and the concrete expansion incidence rate of the expanding agent can be promoted to be about 0.03% by adding the concrete anti-crack activator into the concrete. The concrete anti-cracking activator is doped into the concrete, so that the water-reducing rate, the smoothness and the shrinkage stability of the concrete can be improved, the bonding degree and the strength of the concrete are enhanced, and the problems that the concrete is bulged, cracked and cracked due to lack of flowability due to unbalanced shrinkage caused by unstable hydration heat flowability of substances such as calcium sulfate during initial setting of the concrete are prevented. The concrete anti-crack activator also has the advantages of simple method, easily available raw materials and low cost.
本发明公开了一种混凝土抗裂活性剂及其制备方法，该混凝土抗裂活性剂是以水、绢云母粉、糯米淀粉、甲醛、氢氧化钠、丙烯酸乳胶液、阻泥剂为原料，通过一定方法制备而得。本发明通过混凝土抗裂活性剂可增加混凝土12mm的塌落度流动活性，以促使膨胀剂能够增加在粘性保湿状况下膨胀，混凝土通过添加混凝土抗裂活性剂能促使膨胀剂在混凝土膨胀发生率在0.03%左右。混凝土掺入混凝土抗裂活性剂能够提高混凝土的减水率、流畅性和收缩稳定性，增强混凝土的粘接度及强度，防止发生混凝土在初凝时因硫酸钙等物质水化热流动性不稳定、导致收缩不均衡混凝土因缺乏流动性而起鼓开裂、产生裂缝的问题。本发明还具有方法简单、原料易得、成本低廉的优点。
The invention discloses a concrete anti-crack activator and a preparation method thereof. The concrete anti-crack activator is prepared by using water, sericite powder, glutinous rice starch, formaldehyde, sodium hydroxide, an acrylic latex solution and a mud inhibitor as raw materials through a certain method. According to the invention, the slump flow activity of the concrete can be increased by 12 mm through the concrete anti-crack activator, so that an expanding agent can be promoted to increase expansion under a viscous moisture retention condition, and the concrete expansion incidence rate of the expanding agent can be promoted to be about 0.03% by adding the concrete anti-crack activator into the concrete. The concrete anti-cracking activator is doped into the concrete, so that the water-reducing rate, the smoothness and the shrinkage stability of the concrete can be improved, the bonding degree and the strength of the concrete are enhanced, and the problems that the concrete is bulged, cracked and cracked due to lack of flowability due to unbalanced shrinkage caused by unstable hydration heat flowability of substances such as calcium sulfate during initial setting of the concrete are prevented. The concrete anti-crack activator also has the advantages of simple method, easily available raw materials and low cost.
本发明公开了一种混凝土抗裂活性剂及其制备方法，该混凝土抗裂活性剂是以水、绢云母粉、糯米淀粉、甲醛、氢氧化钠、丙烯酸乳胶液、阻泥剂为原料，通过一定方法制备而得。本发明通过混凝土抗裂活性剂可增加混凝土12mm的塌落度流动活性，以促使膨胀剂能够增加在粘性保湿状况下膨胀，混凝土通过添加混凝土抗裂活性剂能促使膨胀剂在混凝土膨胀发生率在0.03%左右。混凝土掺入混凝土抗裂活性剂能够提高混凝土的减水率、流畅性和收缩稳定性，增强混凝土的粘接度及强度，防止发生混凝土在初凝时因硫酸钙等物质水化热流动性不稳定、导致收缩不均衡混凝土因缺乏流动性而起鼓开裂、产生裂缝的问题。本发明还具有方法简单、原料易得、成本低廉的优点。
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