Abstract
In this paper, a kind of high performance concrete (SHPC) was prepared by using sea sand and simulated sea water. The compressive strength of SHPC reached 151.5 MPa. Moreover, SHPC had good carbonization resistance, sulfate resistance, chloride resistance and frost resistance. To investigated its serving performance, SHPC was put in the marine environment for one year. After serving, The changes of SHPC was assessed by appearance, carbonization, compressive strength, Vickers hardness, pH, and the content of free chloride ion. Mercury Intrusion Porosimetry (MIP), X-ray diffraction (XRD) and Scanning Electron Microscope (SEM) were performed to clarify the corrosion mechanism of SHPC in marine environment. The test results indicated that SHPC had the advantages of good performance and durability. Moreover, the construction period was short and suitable for popularization and application.
| Original language | English (US) |
|---|---|
| Article number | 119114 |
| Journal | Construction and Building Materials |
| Volume | 254 |
| DOIs | |
| State | Published - Sep 10 2020 |
Funding
The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (Nos. 51709253 , 51525903 , 51879093 , 51508320 ), Jiangsu Science and Technology Department of China (No. BE2015706 ), the Fundamental Research Funds for the Central Universities (No. 2017B05614 ) and AoShan Talents Outstanding Scientist Program Supported by Qingdao National Laboratory for Marine Science and Technology (No. 2017ASTCP-OS09 ).
Keywords
- Corrosion mechanism
- Marine environment
- Sea sand
- Serving performance
- Steel fibre
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- General Materials Science