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以露石路面的洗刷时间、洗刷窗口期以及露石深度为指标,分别在常用的5种缓凝剂和4种增稠剂中选择露石剂的缓凝组分与增稠组分,并确定相应缓凝组分和增稠组分与水的比例,从而研发配制出优质的路用露石剂;同时考虑到不同施工环境影响,通过相关试验分别得出10℃、20℃、30℃环境下,洗刷出优质露石路面的最佳露石剂用量。结果表明:相对于其他露石剂和增稠剂,蔗糖与黄原胶更适合作为露石剂的缓凝组分与增稠组分,其每100g水的添加量分别是0.25g和0.4g;同时,温度为10℃、20℃、30℃干燥无风环境下得到最佳露石深度的露石剂的用量分别为175g/m2、225g/m2、250g/m2左右。
Taking the scouring time of dew and pavement, the window of scrubbing and the depth of exposed stone as indexes, the retarding and thickening components of dew-forming agent were respectively selected from 5 commonly used retarders and 4 kinds of thickeners. Determine the corresponding retarding component and the proportion of thickening component and water, so as to develop and formulate high-quality dew agent; taking into account the impact of different construction environments, through relevant tests were drawn 10 ℃, 20 ℃, 30 ℃ Under the environment, scrub out the best Lulu stone pavement dosage. The results show that sucrose and xanthan gum are more suitable as dew-retarding components and thickening components than other dew-forming agents and thickeners, and their addition amount per 100g water is 0.25g and 0.4g respectively Meanwhile, the amount of exposed-stone agent with the best dew-sinking depth of 10 ° C, 20 ° C and 30 ° C under dry and windless conditions was 175 g / m2, 225 g / m2 and 250 g / m2, respectively.