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新型提高采收率缓速酸外加剂合成及其酸液性能评价 被引量:1
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作者 陈建达 廖如刚 +2 位作者 全红平 鲁红升 刘洋 《钻采工艺》 CAS 北大核心 2013年第3期93-96,11,共4页
针对酸化过程中,酸岩反应速度较快、穿透距离短、酸化有效期短等缺点,研制出一种新的酸化外加剂单体,用以提高酸化效果。该单体通过曼尼希反应合成而得,其最优合成条件为:单体配比甲醛:胺A:磷B为18.5:8:14(质量比),反应温度为90℃,反应... 针对酸化过程中,酸岩反应速度较快、穿透距离短、酸化有效期短等缺点,研制出一种新的酸化外加剂单体,用以提高酸化效果。该单体通过曼尼希反应合成而得,其最优合成条件为:单体配比甲醛:胺A:磷B为18.5:8:14(质量比),反应温度为90℃,反应时间为14h,阻聚剂对苯二酚加量为0.25%,产品转化率可达91%以上;通过红外光谱分析,证明该合成方案正确、可行;将外加剂单体和AMPS共聚,得到了一种新型的外加剂,其合成条件为:单体配比为24.2:4(单体:AMPS,质量比),单体浓度为40%,引发剂加量为2.0%,聚合时间1h,聚合温度为80℃。研究了缓速酸液体系溶蚀、二次伤害性能,结果表明该外加剂配制的缓速酸工作液具有优良的缓速效果、防二次伤害能力;岩心驱替实验进一步证实该缓速酸具有很好的缓速性能。 展开更多
关键词 缓速 酸化外加剂 二次沉淀 采收率
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Effect of Curing Temperature on Mortar Based on Sustainable Concrete Material's and Poly-Carboxylate Superplasticizer
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作者 Ilham Aguida Belia Aissa Asroun Nabil Bella 《Journal of Civil Engineering and Architecture》 2014年第1期66-72,共7页
Nowadays, technologies in construction field have offered several kinds of chemical admixtures, which offer different behaviors at the fresh state of the batch and by consequence, it is resulted with different mechani... Nowadays, technologies in construction field have offered several kinds of chemical admixtures, which offer different behaviors at the fresh state of the batch and by consequence, it is resulted with different mechanical behaviors at the solid state of the mix. This study focused on the behavior of a new kind of admixture at fresh and solid states. Currently, the concrete material has become a very expensive material because the high price mostly of aggregates, representing the three quarters of the concrete components. By consequence, it costs money and on the other hand, it produces a lot of wastes. The main aspect which guides this study is to make a kind of concrete based mainly on local material and sustainable concrete material (SCM or waste material), which is one very abundant material in quality and quantity, under the current tendency the results obtained in this study summarize up the importance of the temperature during the development of the mechanical characteristics of mortar, mainly on compressive strength at age of 28 days. This is in the case of the addition of limestone crushed additive by percentage of substitution. 展开更多
关键词 MORTAR crushed limestone additive substitution ADMIXTURE temperature.
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