Qingdao University of Technology

Pan Wang

Dongshuai Hou

Xinpeng Wang

Bing Yin

Shaochun Li

Mengmeng Li

Yue Zhang

Cong Wu

Qihui Geng

A method for preparing a styrene-acrylate siloxane interpenetrating polymer network (IPN) composite emulsion is provided. The styrene-acrylate siloxane IPN composite emulsion prepared by the method can effectively improve the compatibility of the styrene-acrylate component and the siloxane component, and realize the gradient orientation distribution and ordered microphase separation of various styrene-acrylate molecules and siloxane molecules, thereby improving the synergistic working performance of a styrene-acrylate coating and a siloxane coating, and endowing the composite protective emulsion with excellent rheological properties, waterproof properties, anti-ion penetration properties, anti-carbonization properties, acid and alkali corrosion resistance, and anti-aging properties.

Method for preparing styrene-acrylate siloxane interpenetrating polymer network composite emulsion

The disclosure relates to the technical field of building materials, and in particular, to lightweight aggregate ultra-high performance concrete (UHPC) and a preparation method thereof. The lightweight aggregate UHPC provided in the disclosure is prepared from the following components in parts by weight: cement 220-260 parts; silica fume 100-120 parts; expanded perlite powder 120-160 parts; expanded perlite 230-260 parts; polycarboxylate superplasticizer 15-20 parts; steel fiber 76-93 parts; and water 140-160 parts, where a maximum particle size of the expanded perlite powder is 0.075 mm; and a particle size range of the expanded perlite is 0.075-0.6 mm. The lightweight UHPC prepared according to the design of the disclosure has excellent density performance, and can satisfy requirements of concrete components, etc. in service in super-long-span bridges, super high-rise buildings, and complex marine environments for lightweight, ultra-high strength, and ultra-high durability of cement-based materials, and has a relatively high promotion value.

Lightweight aggregate ultra-high performance concrete (UHPC) and preparation method thereof

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Shandong, China

Pan Wang