A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of building material preparation, and particularly relates to a preparation method of anti-crack mortar. Waste straws are used as a raw material. The preparation method comprises the following steps: heating waste straws, boiling straws in an alkali, neutralizing and modifying the solution by chloroacetic acid, carrying out high speed centrifugation, washing, and drying to obtain modified wood fibers; alkalizing industrial gelatin, adding glycidyl trimethyl ammonium chloride, heating to react, and filtering to obtain an ossein glue solution; dissolving the ossein glue solution with hot water; neutralizing, grinding and drying to obtain ossein powder; then preparing active aggregate from processed vitrified micro-beads and expanded perlite; mixing the aggregate, mortar and other raw materials, and stirring to obtain the anti-crack mortar, which has the advantages of high compressive strength and flexural strength, excellent tensile bonding strength, crack resistance, and wide application prospect.
本发明属于建材制备技术领域，具体涉及一种抗裂砂浆的制备方法。本发明以废弃的秸秆为原料，经过加热碱煮，用氯乙酸中和改性，经高速离心、洗涤、干燥得到改性木质纤维，将工业明胶碱化后加入氯化缩水甘油三甲基铵加热反应后过滤得到骨素胶液，将骨素胶液用热水溶解，经过中和、研磨、干燥得到骨素粉，再用处理过的玻璃化微珠与膨胀珍珠岩制得活性骨料，骨料与砂浆其他原料搅拌混合制备得到抗裂砂浆，本发明制备的抗裂砂浆，抗压强度和抗折强度良好，拉伸粘结强度优良，不容易产生裂纹，有广阔的应用前景。
The invention belongs to the technical field of building material preparation, and particularly relates to a preparation method of anti-crack mortar. Waste straws are used as a raw material. The preparation method comprises the following steps: heating waste straws, boiling straws in an alkali, neutralizing and modifying the solution by chloroacetic acid, carrying out high speed centrifugation, washing, and drying to obtain modified wood fibers; alkalizing industrial gelatin, adding glycidyl trimethyl ammonium chloride, heating to react, and filtering to obtain an ossein glue solution; dissolving the ossein glue solution with hot water; neutralizing, grinding and drying to obtain ossein powder; then preparing active aggregate from processed vitrified micro-beads and expanded perlite; mixing the aggregate, mortar and other raw materials, and stirring to obtain the anti-crack mortar, which has the advantages of high compressive strength and flexural strength, excellent tensile bonding strength, crack resistance, and wide application prospect.
本发明属于建材制备技术领域，具体涉及一种抗裂砂浆的制备方法。本发明以废弃的秸秆为原料，经过加热碱煮，用氯乙酸中和改性，经高速离心、洗涤、干燥得到改性木质纤维，将工业明胶碱化后加入氯化缩水甘油三甲基铵加热反应后过滤得到骨素胶液，将骨素胶液用热水溶解，经过中和、研磨、干燥得到骨素粉，再用处理过的玻璃化微珠与膨胀珍珠岩制得活性骨料，骨料与砂浆其他原料搅拌混合制备得到抗裂砂浆，本发明制备的抗裂砂浆，抗压强度和抗折强度良好，拉伸粘结强度优良，不容易产生裂纹，有广阔的应用前景。