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长江三峡永久船闸混凝土工程约使用Ⅰ级粉煤灰 2 .4万吨。试验研究表明 ,Ⅰ级灰各项技术指标均满足相应技术标准 ,品质优良 ,适应性良好 ,在泵送混凝土施工应用中 ,表现出良好的可泵性
The Three Gorges Permanent Ship Lock Concrete Project uses about 24,000 tons of Grade I fly ash. The experimental results show that all the technical indexes of Grade I gray meet the corresponding technical standards, which are of good quality and good adaptability. They show good pumpability in pumping concrete construction