Qingdao University of Technology

Ocean University of China

Qingdao Institute of Marine Geology

Ning Li

Zuquan Jin

Mengyuan Li

Bo Pang

Yunsheng Zhang

Wei Lu

Xiaoying Zhang

Yong Yu

Xiaoliang Ren

Zhenmin Bao

Xiaoli Hu

Shan Wang

Jingjie Hu

Chuansheng Xiong

Rui Hou

Xiaoyun Song

A concrete curing agent, a curing coating layer and a preparation method thereof, the concrete curing agent comprises a hardening agent and a hydrophobic agent, the raw materials of the hardening agent comprises the following raw materials in parts by weight: 0.1-10 parts of fluorosilicate salt and 100 parts of water, and the hydrophobic agent comprises the following raw materials in parts by weight: 0.1-10 parts of a base catalyst, 1-10 parts of a silane coupling agent, 0.1-10 parts of hydrogen-containing silicone oil, 5-10 parts of a cross-linking agent, 10-100 parts of silica sol and 100-1000 parts of water. The present invention can significantly improve the strength, hardness and hydrophobicity, impermeability and freeze-thaw resistance of surface of concrete before and after hardening, and effectively improves the service life of concrete structures.

Concrete curing agent, curing coating layer and preparation method thereof

The present invention relates to a method in the field of shellfish breeding techniques, for breeding a scallop population that have improved carotenoid content in the orange-red adductor muscles or other muscle tissues. This method includes the steps of selecting the rare individuals that have orange-red adductor muscles from natural scallop populations, growing the selected scallops, inducing the reproduction, artificially fertilization, and finally breeding a scallop population with orange-red adductor muscles which can be expanded for the cultivation on a large scale. Comparing to other known breeding methods, the present method does not use transgenic technologies to include introduce any exogenous genes, thus does not have any bio-safety and ethics issues. All the mutant scallops with orange-red adductor muscles are selected from natural or cultivated populations. After breeding for four generations, the obtained scallops have abundant carotenoid ingredients in their orange-red adductor muscles. The obtained scallop population is genetically stable and has high survival rate, and it thus can be used for cultivation on a large scale. In summary, this breeding method is simple, low cost and the breeding scallop population has high economic and nutritious values.

Breeding method for orange-adductor-muscle scallop

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Qingdao, China

Ning Li