Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Anti-crack dry-mixed plastering mortar and preparation method thereof
The invention discloses an anti-cracking dry-mixed plastering mortar, which is prepared from the following components in parts by mass: 200 to 300 parts of cement, 20 to 40 parts of powdery mineral admixture, 800 to 1000 parts of gravel aggregate, 5 to 10 parts of redispersible latex powder, 2 to 4 parts of chemical synthetic fiber, 1 to 3 parts of mortar anti-cracking agent, 1 to 3 parts of micro-expansion agent and 8 to 12 parts of admixture, a preparation method of the anti-cracking dry-mixed plastering mortar comprises the following steps: S1, preparing the admixture, S2, taking quartz sand, limestone and river sand in the gravel aggregate, and respectively sieving the quartz sand, the limestone and the river sand, and S3, firstly adding the admixture into the mixture, and mixing for 5-10min. The redispersible latex powder has stronger flexibility in the flexible anti-crack mortar, the mortar anti-crack agent has obvious effects of water retention, shrinkage reduction, crack resistance and improvement of the bonding strength of the mortar and a matrix, and the micro-expansive agent does not reduce the later strength of the mortar, so that the cracking resistance of the dry-mixed plastering mortar is improved to a greater extent.
本发明公开了一种抗裂干混抹灰砂浆，按质量份数计，包括如下组分，200‑300份水泥、20‑40份粉状矿物掺和料、800‑1000份砂石骨料、5‑10份可再分散性乳胶粉、2‑4份化学合成纤维、1‑3份砂浆抗裂剂、1‑3份微膨胀剂以及8‑12份外加剂，一种抗裂干混抹灰砂浆的制备方法，包括如下步骤：S1、外加剂的制备，S2、取砂石骨料中的石英砂、石灰石和河沙，分别过筛，S3、将外加剂先加入到混合料中混合5‑10min，本发明化学合成纤维改进砂浆的抗塑性、开裂性，可再分散乳胶粉在柔性抗裂砂浆中更具有较强的柔韧性，砂浆抗裂剂具有显著的保水、减缩、抗裂和提高砂浆与基体粘结强度的作用，微膨胀剂不降低砂浆后期的强度，进而在较大程度上提高了干混抹灰砂浆的抗开裂性。
Anti-crack dry-mixed plastering mortar and preparation method thereof
The invention discloses an anti-cracking dry-mixed plastering mortar, which is prepared from the following components in parts by mass: 200 to 300 parts of cement, 20 to 40 parts of powdery mineral admixture, 800 to 1000 parts of gravel aggregate, 5 to 10 parts of redispersible latex powder, 2 to 4 parts of chemical synthetic fiber, 1 to 3 parts of mortar anti-cracking agent, 1 to 3 parts of micro-expansion agent and 8 to 12 parts of admixture, a preparation method of the anti-cracking dry-mixed plastering mortar comprises the following steps: S1, preparing the admixture, S2, taking quartz sand, limestone and river sand in the gravel aggregate, and respectively sieving the quartz sand, the limestone and the river sand, and S3, firstly adding the admixture into the mixture, and mixing for 5-10min. The redispersible latex powder has stronger flexibility in the flexible anti-crack mortar, the mortar anti-crack agent has obvious effects of water retention, shrinkage reduction, crack resistance and improvement of the bonding strength of the mortar and a matrix, and the micro-expansive agent does not reduce the later strength of the mortar, so that the cracking resistance of the dry-mixed plastering mortar is improved to a greater extent.
本发明公开了一种抗裂干混抹灰砂浆，按质量份数计，包括如下组分，200‑300份水泥、20‑40份粉状矿物掺和料、800‑1000份砂石骨料、5‑10份可再分散性乳胶粉、2‑4份化学合成纤维、1‑3份砂浆抗裂剂、1‑3份微膨胀剂以及8‑12份外加剂，一种抗裂干混抹灰砂浆的制备方法，包括如下步骤：S1、外加剂的制备，S2、取砂石骨料中的石英砂、石灰石和河沙，分别过筛，S3、将外加剂先加入到混合料中混合5‑10min，本发明化学合成纤维改进砂浆的抗塑性、开裂性，可再分散乳胶粉在柔性抗裂砂浆中更具有较强的柔韧性，砂浆抗裂剂具有显著的保水、减缩、抗裂和提高砂浆与基体粘结强度的作用，微膨胀剂不降低砂浆后期的强度，进而在较大程度上提高了干混抹灰砂浆的抗开裂性。
Anti-crack dry-mixed plastering mortar and preparation method thereof
一种抗裂干混抹灰砂浆及其制备方法
ZHAO HONGCAI (Autor:in) / HUANG XIAOHONG (Autor:in) / CAO KAIJIE (Autor:in)
06.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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