| Ocean environments around military harbors are critical and complex. Ordinary ferroconcrete has been proved short in durability as constructional material for docks in many projects. An efficient method in dock reparation is to enhance durability by high performance concrete technology. However, varieties in choices, and combinations in ratio prevent application of high performance concrete materials in actual cases. University of Naval Engineering Tianjin has developed The Compound Coastal Defensive Engineering Anti-erosion Additive HF-II as a solution to the problem.The author of this paper analyzes the causes of erosive damages; studies in basic functions of HF-II; also, tests on durability, dynamic and anti-crack performances of high performance anti-rust concrete formulated from HF-II in indoor system. Then, he brings forward technological advices in high performance anti-rust concrete formulation from HF-II, which he proves by field experiments, and summarizes the application techniques, as well as measures of quality control.According to his research, the coastal defensive engineering anti-erosion additive, HF-II, is a compound, which has excellent comprehensive technical functions—with it, easy steps are needed to formulate high performance anti-rust concrete with enhanced strength, freeze thaw resistance, as well as, anti-leaking, anti-erosion, anti-chloride ion penetration and anti-crack performances. With HF-II application in military docks reparation, feeding times during concrete mixing can be reduced, with procedures simplified, missed feeding and mistaken feeding avoided; therefore, quality control and efficiency are improved from the beginning. |
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