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Experimental work was carried out to develop information about mechanical properties of recycled concrete (RC) in marine environment. By using the seawater and dry-wet circulation to simulate the marine environment, specimens of RC were tested with different replacement percentages of 0%, 30%, and 60% after immersing in seawater for 4, 8, 12, and 16 months, respectively. Based on the analysis of the stress-strain curves (SSCs) and compressive strength, it is revealed that RC' peak value and elastic modulus decreased with the increase of replacement percentage and corroding time in marine environment. And the failure of recycled concrete was speeded up with more obvious cracks and larger angles of 65° to 85° in the surface when compared with normal concrete. Finally, the grey model (GM) with equal time intervals was constructed to investigate the law of compressive strength of recycled concrete in marine environment, and it is found that the GM is accurate and feasible for the prediction of RC compressive strength in marine environment.

Agglomeration and building complexes are two mainstreams in modern urban development, planning and construction. The combination of agglomeration theory and building complex theory is proved to be feasible and useful through function analysis of Shanghai Maritime Service Agglomeration (SMSA) area. The findings point out that construction innovation of building complexes should comply with the integral demand of talents, companies and government. In addition to external scale effect, cost reduction, talents attraction and other agglomeration effects, function innovation of SMSA is analyzed and investment is made in four main aspects as comprehensive maritime services, resource & energy saving, environment-friendly & green transformation and environment adaptive yacht harbor operation. The assessment and discussion on the construction project witnessed a great success that social and economic benefits are abundant. The experience of SMSA is summed up to provide theoretical and practical reference for the construction of other building complexes and agglomeration areas.

This paper introduced the experience of Shanghai in building the waterfront urban complex with industrial characteristics. In order to ensure the logic and scientific rationality, this paper developed the standard system on the concept of system engineering, based on which a three-dimensional space was proposed for the Shanghai Shipping Service Complex (SSC). Fundamental elements such as technology, management, economy and environment are analyzed and further classified, thus ensuring the systematicness and scientificity of the standard. The framework of standard system was then established through further elaborating the initial structure with four aspects as shipping service, building technology, environment friendly and sustainable management.Contribution/Originality: This paper is a pioneer research in the standard establishment for urban complex.The primary contribution is proposing a framework and design logic in forming the standard system of the complex, providing reference for similar waterfront reconstruction projects.Huangpu River was busy for transport services, with terminals, warehouses and factories spread all over the riverside areas. However, with the expansion of the city scale, the old port area has been unable to adapt to the needs of urban development. Since 2012, the Shanghai Municipal Government has issued the "12th and 13th Five-Year Plan for the Development of the Huangpu River" so as to promote the reconstruction of old port area.On the other side, Shanghai has been preparing to be the international shipping center for a long time. In order to further strengthen its function for the shipping center, the North Bund, as a traditional shipping service agglomeration area, firmly grasps such an opportunity of function transformation, relying on its location advantages and industry foundation.