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室内试验和施工实践均表明在路面混凝土中掺加粉煤灰可改善混凝土的和易性、节约水泥、降低工程造价，具有显著的经济社会效益。
Laboratory tests and construction practices have shown that the addition of fly ash in pavement concrete can improve the workability of concrete, save cement and reduce construction costs, with significant economic and social benefits.