Seawater mixed culture coral reef sand C120UHPC and preparation method thereof

Abstract

The invention discloses seawater mixed culture coral reef sand C120UHPC and a preparation method thereof. The UHPC comprises the following components in proportion: 690.2 kg / m<3> of aluminoferrite cement; 138.6 kg / m<3> of fine coral reef powder; 194.1 kg / m<3> of coarse coral reef powder; 776.3 kg / m<3> of quartz sand; 138.6 kg / m<3> of silica fume; 34.7 kg / m<3> of fly ash; 182.3 kg / m<3> of seawater;41.6 kg / m<3> of a superplasticizer; and 140.4 kg / m<3> of steel fibers. The invention also discloses a preparation method of the UHPC, and a curing method comprises the following steps: placing a concrete test block in a standard curing chamber, covering the test block with wet linen, or placing the test block in water, maintaining multiple watering curing in the curing process, and preventing evaporation of water in the concrete, so that the curing method avoids steam curing of the UHPC. The seawater mixed culture coral reef sand C120UHPC and the method have the technical advantages that themethod is beneficial to application and popularization of UHPC, has important significance in meeting large-scale engineering construction of island reefs in the South China Sea, achieving local material utilization, reducing cost, shortening the construction period and the like, the construction cost of offshore engineering is reduced, and the requirements for greenization, energy conservation and environmental protection of civil engineering are met.

Description

technical field [0001] The invention relates to the technical field of preparation of civil engineering materials, in particular to C120UHPC, a coral reef sand mixed with seawater and a preparation method thereof. Background technique [0002] my country's far-sea islands and reefs are far away from the mainland of the motherland, and there is a lack of material and fresh water resources, which limits the construction of islands. [0003] Due to the lack of materials and fresh water resources in the construction of high-sea projects, if we continue to use traditional building materials, not only will the maritime transportation tasks be arduous, but the transportation costs will be too high, which will seriously restrict my country's large-scale construction, management and resource development of high-seas. Moreover, traditional building materials have poor durability and short service life in the marine climate environment, which seriously restricts people's large-scale co...

AI Technical Summary

Problems solved by technology

[0003] Due to the lack of materials and fresh water resources in the construction of offshore projects, if we continue to use traditional building materials, not only the task of maritime transportation will be arduous, but the transportation cost will be too high, which will seriously restrict my country's large-scale construction, management and resource development of distant seas.

Moreover, traditional building materials have poor durability and short service life in the marine climate environment, which seriously restricts people's large-scale construction, management and resource development in the open sea.