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Mechanical characteristics of a classical concrete lightened by the addition of treated straws

机译：加入处理过的秸秆减轻了经典混凝土的机械性能

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摘要

This experimental work aims at developing and investigating a lightened concrete by the addition of treated straws. The used formulation is based on that of an ordinary concrete which is composed of sand and gravel as the main aggregates. The properties of the straws are improved by using one of two treatments before their use: the hot water and bitumen. Henceforth, the main objective of this study is to assess the mechanical characteristics of different formulations with different compositions and treatments on straws. The obtained results have shown that the addition of straws improves its lightness property. However, it decreases the compressive and flexural strengths as well as decreases the modulus of elasticity and increases the dimensional variations. Set into comparison to the concrete with untreated straws, the treatment of straws by hot water or by bitumen improves most of the characteristics.
机译：这项实验工作旨在通过添加处理过的稻草来开发和研究轻质混凝土。所使用的配方是基于由沙子和砾石为主要骨料的普通混凝土的配方。吸管通过使用以下两种处理方法之一来改善其性能：热水和沥青。今后，这项研究的主要目的是评估在秸秆上具有不同成分和处理方式的不同配方的机械特性。所得结果表明，加入吸管可改善其轻度性能。但是，它降低了抗压强度和弯曲强度，并降低了弹性模量并增加了尺寸变化。与未经处理的秸秆混凝土相比，通过热水或沥青处理秸秆可改善大多数特性。

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  • 来源
    《Advances in Concrete Construction》 |2018年第4期|375-386|共12页
  • 作者

    Zied Kammoun; Abderraouf Trabelsi;

  • 作者单位

    Universite de Tunis El Manar, Ecole Nationale d'lngenieurs de Tunis, LR11ES16 Laboratoire de Materiaux, Optimisation et Energie pour la Durabilite, 1002, Tunis, Tunisia,Universite de Carthage, Institut Suprieur des Technologies de I'Environnement de I'Urbanisme et du Batiment, 2 Rue de I'Artisanat Charguia 2, 2035 Tunis, Tunisia;

    Universite de Tunis El Manar, Ecole Nationale d'lngnieurs de Tunis, LR-03-ES05 Laboratoire de Genie Civil, 1002, Tunis, Tunisia,Academie Militaire, Departement Genie Civil, Fondouk Jadid, Tunisia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    concrete; straw; treatment; mechanical properties;

    机译：具体;稻草;治疗;机械性能;

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