Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified waste putty and preparation method thereof, and self-leveling mortar
The invention relates to modified waste putty and a preparation method thereof, and self-leveling mortar. The preparation method of the modified waste putty comprises the following steps: taking wasteputty, immersing the waste putty in an organic solvent, taking out the waste putty, immersing the waste putty in water I, and taking out the waste putty to prepare a first intermediate; firing the first intermediate at the temperature of 300 DEG C and 400 DEG C, calcining at the temperature of 900+/-50 DEG C, and cooling to prepare a second intermediate; mixing the second intermediate and water II, introducing carbon dioxide, adding a surface treating agent, and stirring to prepare a third intermediate; and dehydrating, drying and grinding the third intermediate. The prepared modified waste putty is good in hydrophilicity and dispersity, can be used in the self-leveling mortar, can fill gaps between aggregate and particles, is beneficial to growth of hydrated crystals, is beneficial to interface bonding of cement and fine aggregate, enables set cement to be more compact, and improves the mechanical properties of the mortar.
本发明涉及改性废腻子及其制备方法和自流平砂浆。改性废腻子的制备方法包括以下步骤：取废腻子，浸没于有机溶剂中，取出后再浸泡于水I中，取出，制备第一中间体；将第一中间体于300℃‑400℃下灼烧，再于900±50℃下煅烧，冷却，制备第二中间体；混合第二中间体和水II，通入二氧化碳，再加入表面处理剂，搅拌，制备第三中间体；对第三中间体进行脱水、干燥和研磨处理。制备的改性废腻子亲水性好、分散性好，用于自流平砂浆中，可填充骨料及颗粒间空隙，同时有利于水化晶体生长，利于水泥与细骨料的界面粘结，水泥石更致密，提高砂浆的力学性能。
Modified waste putty and preparation method thereof, and self-leveling mortar
The invention relates to modified waste putty and a preparation method thereof, and self-leveling mortar. The preparation method of the modified waste putty comprises the following steps: taking wasteputty, immersing the waste putty in an organic solvent, taking out the waste putty, immersing the waste putty in water I, and taking out the waste putty to prepare a first intermediate; firing the first intermediate at the temperature of 300 DEG C and 400 DEG C, calcining at the temperature of 900+/-50 DEG C, and cooling to prepare a second intermediate; mixing the second intermediate and water II, introducing carbon dioxide, adding a surface treating agent, and stirring to prepare a third intermediate; and dehydrating, drying and grinding the third intermediate. The prepared modified waste putty is good in hydrophilicity and dispersity, can be used in the self-leveling mortar, can fill gaps between aggregate and particles, is beneficial to growth of hydrated crystals, is beneficial to interface bonding of cement and fine aggregate, enables set cement to be more compact, and improves the mechanical properties of the mortar.
本发明涉及改性废腻子及其制备方法和自流平砂浆。改性废腻子的制备方法包括以下步骤：取废腻子，浸没于有机溶剂中，取出后再浸泡于水I中，取出，制备第一中间体；将第一中间体于300℃‑400℃下灼烧，再于900±50℃下煅烧，冷却，制备第二中间体；混合第二中间体和水II，通入二氧化碳，再加入表面处理剂，搅拌，制备第三中间体；对第三中间体进行脱水、干燥和研磨处理。制备的改性废腻子亲水性好、分散性好，用于自流平砂浆中，可填充骨料及颗粒间空隙，同时有利于水化晶体生长，利于水泥与细骨料的界面粘结，水泥石更致密，提高砂浆的力学性能。
Modified waste putty and preparation method thereof, and self-leveling mortar
改性废腻子及其制备方法和自流平砂浆
YU CHANGTAO (Autor:in) / TANG ZHENZHONG (Autor:in) / ZHANG QINQIN (Autor:in)
08.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Phosphogypsum solid waste self-leveling mortar and preparation method thereof
| Europäisches Patentamt | 2021
Lime putty-based mortar and preparation method thereof
| Europäisches Patentamt | 2024