Study On The Characteristics And Engineering Application Of Sea Water Mixed Coral Reef Sand Concrete

Seawater mixed coral reef sand concrete is a good way to solve the constraints of building from the mainland island,to study the performance of seawater mixed coral reef sand concrete,so that seawater mixed coral reef concrete to achieve large-scale engineering applications,is significant for island construction.Based on the actual situation of a project,the corresponding seawater mixed coral reef sand concrete is designed according to the requirements of different engineering structural parts for the performance and mechanical properties of concrete.The application of seawater mixed coral reef sand concrete is practiced in a certain engineering practice.The practical application of the engineering shows that the coral reef sand has a multi-angular structure,and its structural characteristics are particularly suitable for the configuration of low-strength cement stabilization layer concrete.The coral reef sand itself has many pores,and the water absorption characteristics of the coral reef sand as the fine aggregate are obvious,The amount of coral reef sand concrete is larger than that of conventional concrete.When the amount of water and cementitious material is increased,the concrete with good working performance and good mechanical performance can be blended.Coral reef sand concrete is suitable for both concrete In the ordinary revetment engineering concrete structure,also suitable for large flow requirements of large volume of bag concrete structure.This study combined with the actual situation of a project,according to the working performance and mechanical properties of different parts of the concrete structure engineering requirements,the design of the seawater mixing Reef Sand Concrete corresponding guide,mixed with seawater coral sand concrete has been applied in a practical project.The practical application shows that the Coral Reef Sand has more angular structure.Cement stabilized layer of concrete its structure is especially suitable for the allocation of low intensity;Coral Reef Sand pore,with coral sand as the water absorption characteristics of concrete mixing process of fine aggregate is obvious,coral sand mixed amount of concrete cementitious materials than conventional materials of concrete cementitious materials,when increasing water consumption and cementitious materials,can mix a large liquidity good work performance,stable mechanical properties of concrete;coral sand concrete is suitable for ordinary concrete revetment engineering The utility model is also suitable for large volume concrete structure with large fluidity requirementsThe construction of far from the mainland Island,the transportation cost is expensive,the cost is much higher than even the mainland direct cost of procurement of raw materials,the cost difference between cement and aggregate the smaller,making to achieve the application materials become a reasonable increase in cementitious materials;in the absence of freshwater resources when reefs,mechanical properties and durability to meet the design requirements,using seawater mixing concrete it is reasonable to use a measure material;if can use local materials,with seawater and coral reef sand as part of raw materials of concrete,to realize the mixing of coral reef sand concrete should be used for reef engineering,will save the construction cost a lot,bring huge economic benefits to the enterprise.