Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified waste and old rubber, preparation method thereof and sound insulation mortar
The invention relates to modified waste and old rubber, a preparation method thereof and sound insulation mortar. The preparation method of the modified waste and old rubber comprises the following steps: taking 100-mesh waste rubber particles with the particle size of 50 meshes, soaking in an alkaline solution, taking out, drying, freezing at the temperature of -20 DEG C to 15 DEG C to prepare arubber particle intermediate, mixing the rubber particle intermediate and cement, adding water, and standing for 10 hours to enable the cement to be subjected to prehydration reaction. The waste and old rubber particles are physically and chemically modified in advance, so that the hydrophilicity of the waste rubber particles is improved, the air entraining effect of the waste rubber particles ina cement-based material is reduced, the waste rubber particles are more tightly combined with a hydration product of a gel material, the overall mechanical strength of the sound insulation mortar is kept, and the sound insulation mortar is not prone to cracking. Meanwhile, the density of the waste rubber particles is increased, the waste rubber particles are not prone to floating upwards after being added into cement mortar, and the sound insulation effect is good.
本发明涉及改性废旧橡胶及其制备方法和隔声砂浆。所述改性废旧橡胶的制备方法，包括以下步骤：取粒径为50目~100目的废旧橡胶颗粒，于碱性溶液中浸泡，取出后干燥，再于‑20℃~‑15℃下冷冻，制备橡胶颗粒中间体；混合所述橡胶颗粒中间体和水泥，然后加入水，放置10h~24h，使水泥发生预水化反应。通过预先对废旧橡胶颗粒进行物理和化学改性，改善了废旧橡胶颗粒的亲水性，减少了其在水泥基材料中的引气作用，使其与凝胶材料水化产物结合更为紧密，保持隔声砂浆整体力学强度，不易开裂。同时，增大了废旧橡胶颗粒的密度，添加到水泥砂浆后不易上浮，隔声效果好。
Modified waste and old rubber, preparation method thereof and sound insulation mortar
The invention relates to modified waste and old rubber, a preparation method thereof and sound insulation mortar. The preparation method of the modified waste and old rubber comprises the following steps: taking 100-mesh waste rubber particles with the particle size of 50 meshes, soaking in an alkaline solution, taking out, drying, freezing at the temperature of -20 DEG C to 15 DEG C to prepare arubber particle intermediate, mixing the rubber particle intermediate and cement, adding water, and standing for 10 hours to enable the cement to be subjected to prehydration reaction. The waste and old rubber particles are physically and chemically modified in advance, so that the hydrophilicity of the waste rubber particles is improved, the air entraining effect of the waste rubber particles ina cement-based material is reduced, the waste rubber particles are more tightly combined with a hydration product of a gel material, the overall mechanical strength of the sound insulation mortar is kept, and the sound insulation mortar is not prone to cracking. Meanwhile, the density of the waste rubber particles is increased, the waste rubber particles are not prone to floating upwards after being added into cement mortar, and the sound insulation effect is good.
本发明涉及改性废旧橡胶及其制备方法和隔声砂浆。所述改性废旧橡胶的制备方法，包括以下步骤：取粒径为50目~100目的废旧橡胶颗粒，于碱性溶液中浸泡，取出后干燥，再于‑20℃~‑15℃下冷冻，制备橡胶颗粒中间体；混合所述橡胶颗粒中间体和水泥，然后加入水，放置10h~24h，使水泥发生预水化反应。通过预先对废旧橡胶颗粒进行物理和化学改性，改善了废旧橡胶颗粒的亲水性，减少了其在水泥基材料中的引气作用，使其与凝胶材料水化产物结合更为紧密，保持隔声砂浆整体力学强度，不易开裂。同时，增大了废旧橡胶颗粒的密度，添加到水泥砂浆后不易上浮，隔声效果好。
Modified waste and old rubber, preparation method thereof and sound insulation mortar
改性废旧橡胶及其制备方法和隔声砂浆
YU CHANGTAO (Autor:in) / TANG ZHENZHONG (Autor:in) / ZHANG QINQIN (Autor:in)
12.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Building rubber particle modified sound insulation mortar and preparation method thereof
| Europäisches Patentamt | 2022
ENVIRONMENT-FRIENDLY SOUND-INSULATION RUBBER MORTAR AND PREPARATION METHOD THEREOF
| Europäisches Patentamt | 2024
Low-water-absorption modified waste brick, preparation method thereof and sound insulation mortar
| Europäisches Patentamt | 2021
Modified thermal insulation rubber cement mortar and preparation method thereof
| Europäisches Patentamt | 2023
Sound insulation mortar and preparation method thereof
| Europäisches Patentamt | 2024