石油平台潮差区混凝土的耐久性

Durability of Concrete Used for Oil-platform in Tidal Zone

基于对石油平台潮差区混凝土品质恶化和钢筋锈蚀二者交互作用的分析 ,提出以原状粉煤灰代砂来提高混凝土耐久性的方案 ,并进行了较系统的对比试验 ,结果表明

Depending on the data at home and abroad of studies on durability of marine concrete, fly ash is used to replace sand in concrete so as to improve durability of the concrete in tidal zone. In this paper, the mechanical properties, durability of the plain highstrength concrete(series Ⅰ), sandreplaced concrete(series Ⅱ) and cementreplaced concrete(series Ⅲ) by minerals were measured and analysed. The results show that, the resistance to sulfate attack, steel corrosion, permeation of concrete with mineral admixtures is superior to that of plain concrete.