Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Quick plasticizer for concrete with low water-binder ratio, and preparation method of quick plasticizer
The invention discloses a quick plasticizer for concrete with a low water-binder ratio, wherein the first component comprises carboxymethyl cellulose sodium, sodium hydrogen persulfate, sodium p-styrenesulfonate, methyl allyl polyoxyethylene ether and water, the second component comprises glyceryl monostearate, calcium sulphoaluminate and alkyl glycoside, the third component comprises starch ether, stearic acid, polyvinyl alcohol and sodium dodecyl benzene sulfonate, and the fourth component is a maleimide aqueous solution. The method comprises the following steps: heating the third component,adding the first component and the second component into the third component in a dropwise manner at the same time, adding the fourth component in a dropwise manner after the first component and thesecond component are added into the third component, and neutralizing until the pH value is 7 to obtain the quick plasticizer for the concrete with the low water-binder ratio. According to the invention, the plasticizing speed can be greatly accelerated, the plasticizing time is shortened to be within 20 seconds, the production efficiency is improved, the production cost is reduced, the water consumption of concrete is reduced, the fluidity of the concrete is increased, the leveling property is remarkable, the flow velocity is increased, the early strength of the concrete is increased, and theperformance of the concrete is improved.
本发明公开了一种用于低水胶比混凝土的快塑剂，第一组分包括羟甲基纤维素钠、过硫酸氢钠、对苯乙烯磺酸钠、甲基烯丙基聚氧乙烯醚和水，第二组分包括单硬脂酸甘油酯、硫铝酸钙和烷基糖苷，所第三组分包括淀粉醚、硬脂酸、聚乙烯醇和十二烷基苯磺酸钠，第四组分为马来酰亚胺水溶液，方法是将第三组分加热，并向第三组分中同时滴加第一组分和添加第二组分，加完后再滴加第四组分，中和至pH为7，得到用于低水胶比混凝土的快塑剂。本发明能极大加快塑化速度，塑化时间缩短至20秒以内，提高生产效率，降低生产成本，减少混凝土的用水量，增加混凝土的流动度，显著的流平性和增加流速的作用，加快混凝土早期强度增长，增加混凝土性能。
Quick plasticizer for concrete with low water-binder ratio, and preparation method of quick plasticizer
The invention discloses a quick plasticizer for concrete with a low water-binder ratio, wherein the first component comprises carboxymethyl cellulose sodium, sodium hydrogen persulfate, sodium p-styrenesulfonate, methyl allyl polyoxyethylene ether and water, the second component comprises glyceryl monostearate, calcium sulphoaluminate and alkyl glycoside, the third component comprises starch ether, stearic acid, polyvinyl alcohol and sodium dodecyl benzene sulfonate, and the fourth component is a maleimide aqueous solution. The method comprises the following steps: heating the third component,adding the first component and the second component into the third component in a dropwise manner at the same time, adding the fourth component in a dropwise manner after the first component and thesecond component are added into the third component, and neutralizing until the pH value is 7 to obtain the quick plasticizer for the concrete with the low water-binder ratio. According to the invention, the plasticizing speed can be greatly accelerated, the plasticizing time is shortened to be within 20 seconds, the production efficiency is improved, the production cost is reduced, the water consumption of concrete is reduced, the fluidity of the concrete is increased, the leveling property is remarkable, the flow velocity is increased, the early strength of the concrete is increased, and theperformance of the concrete is improved.
本发明公开了一种用于低水胶比混凝土的快塑剂，第一组分包括羟甲基纤维素钠、过硫酸氢钠、对苯乙烯磺酸钠、甲基烯丙基聚氧乙烯醚和水，第二组分包括单硬脂酸甘油酯、硫铝酸钙和烷基糖苷，所第三组分包括淀粉醚、硬脂酸、聚乙烯醇和十二烷基苯磺酸钠，第四组分为马来酰亚胺水溶液，方法是将第三组分加热，并向第三组分中同时滴加第一组分和添加第二组分，加完后再滴加第四组分，中和至pH为7，得到用于低水胶比混凝土的快塑剂。本发明能极大加快塑化速度，塑化时间缩短至20秒以内，提高生产效率，降低生产成本，减少混凝土的用水量，增加混凝土的流动度，显著的流平性和增加流速的作用，加快混凝土早期强度增长，增加混凝土性能。
Quick plasticizer for concrete with low water-binder ratio, and preparation method of quick plasticizer
一种用于低水胶比混凝土的快塑剂及其制备方法
SHI LEI (Autor:in) / SHEN YAN (Autor:in) / QIAN JIAJIA (Autor:in) / MAO RONGLIANG (Autor:in)
19.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2015
A reducing water plasticizer for concrete manufacturing
British Library Online Contents | 2005
British Library Online Contents | 2005