The resin content, the volatile content and the pre-curing degree of the silica/phenolic resin prepreg cloth were on-line determined by near infrared diffuse reflection spectrum.
采用近红外漫反射光谱技术对高硅氧/酚醛预浸布的树脂含量、挥发分含量和预固化度等质量指标进行了在线测定。
The effect of curing regime, pre-wetting degree of lightweight aggregate, and the volume rate of sand on the frost resistance of high strength lightweight concrete is investigated.
采用快速冻融法研究了养护制度、轻集料的预湿程度和体积砂率对高强轻集料混凝土抗冻性能的影响。结果表明：轻集料混凝土具有良好的抗冻性能。
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