Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Naphthalene water reducer with high water reducing performance and preparation method thereof
The invention discloses a naphthalene water reducer with high water-reducing performance, which is prepared from the following raw materials: waste residue, coal tar distillation product, sulfur-containing compound, carbonyl compound, pH regulator, deionized water and silane coupling agent, and a preparation method of the naphthalene water reducer comprises the following steps: grinding and screening the waste residue, putting the waste residue in a reaction container, heating, and then pretreating with the silane coupling agent to obtain the naphthalene water reducer with high water-reducing performance. And then adding a coal tar distillation product, and carrying out sulfonation, hydrolysis, condensation and neutralization reaction. The naphthalene water reducer has a high water-reducing rate and a proper air entraining amount in a high-viscosity concrete environment, can adjust the viscosity of concrete when used in the concrete, does not influence the setting time of the concrete, is easy to construct, and can significantly improve the bleeding resistance and slump of the concrete. More importantly, the naphthalene water reducer has good adaptability to cement of different brands and can be used for compounding of various types of concrete, and the application range of the naphthalene water reducer is effectively expanded.
本发明公开了一种具有高减水性能的萘系减水剂，其制备原料包括：废渣、煤焦油蒸馏产物、含硫化合物、羰基化合物、pH调节剂、去离子水、硅烷偶联剂，其制备方法为将废渣研磨、筛分，置于反应容器内，加热后用硅烷偶联剂进行预处理，然后加入煤焦油蒸馏产物经过磺化、水解、缩合、中和反应制备所得。该萘系减水剂在高黏性混凝土环境中具有较高的减水率、合适的引气量，于混凝土中使用可以调节混凝土的黏性，但不会影响混凝土的凝结时间，易于施工，可以显著提高混凝土的防泌水性和坍落度。更重要的是，该萘系减水剂对不同品牌的水泥适应性良好，可用于多种类型的混凝土复配，有效扩大了其使用范围。
Naphthalene water reducer with high water reducing performance and preparation method thereof
The invention discloses a naphthalene water reducer with high water-reducing performance, which is prepared from the following raw materials: waste residue, coal tar distillation product, sulfur-containing compound, carbonyl compound, pH regulator, deionized water and silane coupling agent, and a preparation method of the naphthalene water reducer comprises the following steps: grinding and screening the waste residue, putting the waste residue in a reaction container, heating, and then pretreating with the silane coupling agent to obtain the naphthalene water reducer with high water-reducing performance. And then adding a coal tar distillation product, and carrying out sulfonation, hydrolysis, condensation and neutralization reaction. The naphthalene water reducer has a high water-reducing rate and a proper air entraining amount in a high-viscosity concrete environment, can adjust the viscosity of concrete when used in the concrete, does not influence the setting time of the concrete, is easy to construct, and can significantly improve the bleeding resistance and slump of the concrete. More importantly, the naphthalene water reducer has good adaptability to cement of different brands and can be used for compounding of various types of concrete, and the application range of the naphthalene water reducer is effectively expanded.
本发明公开了一种具有高减水性能的萘系减水剂，其制备原料包括：废渣、煤焦油蒸馏产物、含硫化合物、羰基化合物、pH调节剂、去离子水、硅烷偶联剂，其制备方法为将废渣研磨、筛分，置于反应容器内，加热后用硅烷偶联剂进行预处理，然后加入煤焦油蒸馏产物经过磺化、水解、缩合、中和反应制备所得。该萘系减水剂在高黏性混凝土环境中具有较高的减水率、合适的引气量，于混凝土中使用可以调节混凝土的黏性，但不会影响混凝土的凝结时间，易于施工，可以显著提高混凝土的防泌水性和坍落度。更重要的是，该萘系减水剂对不同品牌的水泥适应性良好，可用于多种类型的混凝土复配，有效扩大了其使用范围。
Naphthalene water reducer with high water reducing performance and preparation method thereof
一种具有高减水性能的萘系减水剂及其制备方法
DONG CUIPING (Autor:in) / MA LITAO (Autor:in) / SONG BAO (Autor:in) / YOU JIANJIAN (Autor:in)
28.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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