Hip Hing Construction Technology Limited

Kwok Leung So

Su Ping Bao

Hong Gang Zhu

Tomi Pekka Bernhard Nissinen

Jing Wen Liang

Man Lung Sham

Pengyu Chen

Honggang Zhu

Yuet Kee Lam

Kai-Mo Ng

Christopher Kin Ying Leung

Xiao Hu Zhu

The disclosure relates to a method for the surface treatment of a polyester fiber, a modified polyester fiber obtained therefrom, and an engineered cementitious composite containing such modified polyester fibers. The method comprises subjecting the polyester fiber to an alkali hydrolysis to obtain hydrolyzed polyester fiber; applying a solution containing an acid cross-linker and a polyvinyl alcohol to the hydrolyzed polyester fiber, then curing to form a coating having a thickness of sub-micron or micron scale on the polyester fiber, thereby obtaining the modified polyester fiber.

Modified polyester fiber for cementitious composite and method for surface treatment of the same

The present application provides for water capsules, preparation methods of water capsules, a preparation method for lightweight concrete and a structure of lightweight concrete. Each of the water capsules comprises an alkali-sensitive shell and water inside; the water capsules are used to mix with a cementitious matrix, the water capsules can survive during concrete mixing and transportation processes but then gradually rupture in hardened concrete; the water released during the hardening of the concrete is beneficial for the hydration of the concrete. The water capsules and their preparation method, the preparation method for and structure of the lightweight concrete of the present application are of unique design and strong practicability.

Water capsules and their preparation method, preparation method and structure of lightweight concrete

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Hong Kong, China

Kwok Leung So