介绍改性混凝土防裂剂配方确定、防裂机理探讨以及对混凝土性能的影响。
Introduction is made on fix the formula of modified concrete anti-cracking agent, discuss the anti-cracking mechanism and influence on performance of concrete.
介绍改性混凝土防裂剂配方确定、防裂机理探讨以及对混凝土性能的影响。
Introduction is made on fix the formula of modified concrete anti-cracking agent, discuss the antic...
具体而言，要优选材料、改进配合比、喷洒污用防裂剂、还要加强面层护养等措施。
The concrete measures contain choosing high quality materials, improving mix proportion, using anti-cracking agent and intensifying surface maintenance.
尤其是对VF防裂剂的膨胀时间和膨胀量人为可控的特点及由其制作的补偿收缩混凝土在实际工程中应用的效果作了详细的论述，结果表明均取得了理想的防裂效果。
Furthermore, the character that expansion rate and expansion time in VF concrete anti-crack additive can be controlled artificially and the effects in engineering application have been explained.
在压裂作业期间装在防喷器上的装置。压裂液和支撑剂在压力下被泵入压裂头，并沿井向下流动。
The device that is attached to the blowout preventers during a frac job. Fluid and propping agent are pumped under pressure into the frac head and down the well.
使用减缩剂是最有效、直接的防裂措施之一。
To use shrinkage-reducing agent is one of the most effective and direct measures for cracking-resistance.
通过不断自动调整各段防砂液体积、地面加砂浓度、支撑剂类型和粒径等，设计出压裂施工程序。
Through continuous automatical adjustion of the paragraphs fluid volume, ground sand concentration, proppant type and size and so on, the software finally designs fracturing process.
通过不断自动调整各段防砂液体积、地面加砂浓度、支撑剂类型和粒径等，设计出压裂施工程序。
Through continuous automatical adjustion of the paragraphs fluid volume, ground sand concentration, proppant type and size and so on, the software finally designs fracturing process.
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