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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2026, Vol. 45 ›› Issue (4): 1240-1247.DOI: 10.16552/j.cnki.issn1001-1625.2025.0954

• Solid Waste and Eco-Materials • Previous Articles     Next Articles

Mineral Characteristics, Physical and Mechanical Properties of Shallow Marine Sand Aggregates

LIN Mingzhi1,2(), CHEN Yang1,2(), CHEN Bo1,2   

  1. 1.Hainan Key Laboratory of Marine Geological Resources and Environment,Haikou 570206,China
    2.Marine Geological Institute of Hainan Province,Haikou 570206,China
  • Received:2025-09-26 Revised:2025-10-18 Online:2026-04-20 Published:2026-05-14
  • Contact: CHEN Yang

Abstract:

The mineral composition, physical and mechanical properties, and the content of harmful substances of shallow marine sand are important factors affecting the mechanical properties and durability of marine sand concrete. In this paper, mineralogical research was carried out on shallow marine sand around Hainan Island through mineral liberation analyzer, the physical and mechanical properties of marine sand were analyzed in accordance with the provisions of “Sand for Construction”. The research results show that the main mineral components of shallow marine sand are quartz and feldspar. The chloride content in all samples exceeded the standard, and the proportion of samples with excessive bulk density, porosity and mud content exceeded 50%. Shallow marine sand has no potential alkali-silicic acid reaction hazard. It is expected that the particle size distribution of most of the purified marine sand can meet the standards.

Key words: shallow marine sand, particle size distribution, mud content, physical and mechanical property, harmful substance, radioactive specific activity, rapid alkali-silicic acid reaction

CLC Number: