首页> 外文会议>International Conference on Engineering Materials, Metallurgy and Manufacturing >Mechanical Characterization and Robustness of Self-compacting Concrete with Quarry Dust Waste and Class-F Fly Ash as Fillers
【24h】

Mechanical Characterization and Robustness of Self-compacting Concrete with Quarry Dust Waste and Class-F Fly Ash as Fillers

机译:采用采石粉垃圾和F型粉煤灰作为填料的自压制混凝土的机械表征及鲁棒性

获取原文

摘要

Self-Compacting Concrete (SCC) is a special type of concrete which does not require any form of external forces to get compacted. However, it behaves similar or better to conventionally vibrated concrete when it gets hardened. The present study focuses on developing SCC with a constant powder content of 600 kg/m~3 with 450 kg/m~3 of cement. The remaining portion of class-F fly ash (150 kg/m~3) was replaced step by step with a waste material from granite crushing industries called as quarry dust waste (QDW); which is available in abundance at crushed sand factories as a waste material resulted from the washing of crushed granite to remove very fine particles. The effects of replacement were studied at fresh and hardened states of SCC. Apart from the mechanical properties such as compressive, flexural, and split tensile strengths, the ultrasonic pulse velocity assessment was performed to ensure the integrity of test specimens. Robustness, which is the ability of SCC to perform similar way in the case of any small fluctuations in material design or properties is also studied in the present paper. The study revealed that the quarry dust waste can be incorporated in making SCC with reliable fresh and hardened properties. Additionally, the robustness of SCC with quarry dust waste is good and within acceptable limit. Moreover, the incorporation of quarry dust waste makes the concrete more sustainable.
机译:自压力混凝土(SCC)是一种特殊类型的混凝土,不需要任何形式的外力来压实。然而,当它变硬时,它在传统上振动的混凝土时表现得相似或更好。本研究侧重于显影SCC,恒定的粉末含量为600kg / m〜3,水泥450kg / m〜3。 F类飞灰(150千克/米〜3)的其余部分被替换逐步与从称为采石场粉尘废物(QDW)花岗岩粉碎工业废料;这在碎石工厂的丰富以丰富的碎石造成的碎片造成的废料,从洗涤粉碎的花岗岩中取出非常细的颗粒。研究了替代品的效果是在SCC的新鲜和硬化状态下进行的。除了诸如压缩,弯曲和分裂拉伸强度的机械性能外,还进行超声波脉冲速度评估,以确保试样的完整性。在本文中还研究了在本纸上的任何小波动的情况下,SCC在任何小波动中进行类似方式的鲁棒性也是在本文中进行的。该研究表明,采石场除尘废物可掺入具有可靠的新鲜和硬化性能的SCC。此外,SCC与采石场除尘废物的稳健性很好,在可接受的极限内。此外,采石粉粉尘的融合使得混凝土更可持续。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号