Comparison of the behavior of PVA-ECC and normal concrete material in crack and leakage control in liquid containing structures

PVA-ECC 与普通混凝土材料在含液结构裂缝和渗漏控制方面的性能比较

基本信息

  • 批准号:
    516268-2017
  • 负责人:
  • 金额:
    $ 1.82万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Engage Grants Program
  • 财政年份:
    2017
  • 资助国家:
    加拿大
  • 起止时间:
    2017-01-01 至 2018-12-31
  • 项目状态:
    已结题

项目摘要

One of the key issues in the design of concrete liquid containing structures (CLCS) is their crackingcharacteristics and its relation to the liquid leakage. A consistent knowledge on this matter is essential to ensureif the serviceability requirements are met. The previous research conducted in this area is very limited. Most ofthe available literature is focused on the leakage behavior of typical beam sections made of normal concreteunder simple static loading. The lack of empirical data on the permeability behavior of slab or wall sectionsmade of smart material under combinations of loadings is felt in the literature. This study intends to addressthis issue both analytically, using the non-linear finite element (FE) analysis and experimentally, measuring theleakage rate in the loaded specimens under pressurized water as a function of the crack conditions and time.The issue is of particular significance for CLCS used in lifeline facility capacities such as in municipal watersupply, sewage treatment, firefighting, nuclear industry, etc. In such applications, due to functionality reasons,crack and leakage control is the main concern and an uncontrolled cracking could lead to irreparableconsequences. The major issue to be emphasized in this research is the development of cracks leading touncontrollable leakage in the vulnerable regions of the containment walls due to different loading applicationsincluding seismic. Current design codes do not address this issue adequately and it is left to design engineers toconservatively consider it in their design, thus necessitating a more detailed and focused investigation. Themain objective of this research is to assess and compare the performance of self-healing ECC (EngineeredCementitious Composites) and normal concrete material in controlling the crack/leakage in CLCS in an effortto achieve the most desired water tightness characteristics in this type of structures. In this relation, it isproposed that various loading types and stress combinations be induced in specimens representing a reinforcedcontainer wall and their water-tightness behavior be examined then.
混凝土贮液结构的开裂特性及其与液体渗漏的关系是混凝土贮液结构设计中的关键问题之一。对这一问题有一致的认识对于确保是否满足适用性要求至关重要。以前在这方面进行的研究非常有限。现有的文献大多集中于普通混凝土典型梁截面在简单静载下的渗漏性能。缺乏经验数据的渗透性行为的板或墙sectionmade的智能材料组合下的负载是在文献中感到。本研究旨在解决这一问题的分析,使用非线性有限元(FE)分析和实验,测量theleakage率在加载试样在加压水作为裂纹条件和时间的函数。这个问题是特别重要的CLCS用于生命线设施的能力,如在市政供水,污水处理,消防,核工业等应用中,由于功能原因,裂缝和泄漏控制是主要关注点,不受控制的裂缝可能导致不可挽回的后果。在这项研究中要强调的主要问题是裂缝的发展导致不可控的泄漏在脆弱的区域的安全壳壁由于不同的加载应用程序,包括地震。目前的设计规范没有充分解决这个问题,这是留给设计工程师保守地考虑它在他们的设计,因此有必要进行更详细和集中的调查。本研究的主要目的是评估和比较自愈合ECC(EngineeredCementitious Composites)和普通混凝土材料在控制CLCS中的裂缝/渗漏方面的性能,以努力实现此类结构中最理想的水密特性。根据这种关系,建议在容器壁试件中引入不同的荷载类型和应力组合,然后研究其水密性能。

项目成果

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Lachemi, Mohamed其他文献

Effect of metakaolin and silica fume on the durability of self-consolidating concrete
  • DOI:
    10.1016/j.cemconcomp.2012.02.013
  • 发表时间:
    2012-07-01
  • 期刊:
  • 影响因子:
    10.5
  • 作者:
    Hassan, Assem A. A.;Lachemi, Mohamed;Hossain, Khandaker M. A.
  • 通讯作者:
    Hossain, Khandaker M. A.
Effect of macro polypropylene, polyamide and steel fibers on the residual properties of SCC at ambient and elevated temperatures
  • DOI:
    10.1016/j.conbuildmat.2021.123154
  • 发表时间:
    2021-04-08
  • 期刊:
  • 影响因子:
    7.4
  • 作者:
    Guler, Soner;Akbulut, Zehra Funda;Lachemi, Mohamed
  • 通讯作者:
    Lachemi, Mohamed
Effect of severe chloride environment on the flexural behaviour of hybrid concrete systems
  • DOI:
    10.1680/jmacr.18.00437
  • 发表时间:
    2020-08-01
  • 期刊:
  • 影响因子:
    2.7
  • 作者:
    Hussein, Luaay;Amleh, Lamya;Lachemi, Mohamed
  • 通讯作者:
    Lachemi, Mohamed
Effect of Fiber Type on Impact and Abrasion Resistance of Engineered Cementitious Composite
  • DOI:
    10.14359/51710960
  • 发表时间:
    2018-11-01
  • 期刊:
  • 影响因子:
    1.7
  • 作者:
    Ismail, Mohamed K.;Hassan, Assem A. A.;Lachemi, Mohamed
  • 通讯作者:
    Lachemi, Mohamed
Durability properties of lightweight self-consolidating concrete developed with three types of aggregates
  • DOI:
    10.1016/j.conbuildmat.2015.12.118
  • 发表时间:
    2016-03-01
  • 期刊:
  • 影响因子:
    7.4
  • 作者:
    Lotfy, Abdurrahmaan;Hossain, Khandaker M. A.;Lachemi, Mohamed
  • 通讯作者:
    Lachemi, Mohamed

Lachemi, Mohamed的其他文献

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{{ truncateString('Lachemi, Mohamed', 18)}}的其他基金

3D-AM Thermally Smart Composites for Highly Sustainable and Energy Efficient Building Design and Retrofitting
3D-AM 热智能复合材料用于高度可持续和节能的建筑设计和改造
  • 批准号:
    RGPIN-2022-03808
  • 财政年份:
    2022
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Novel Green Concrete Components for Modular Construction
用于模块化建筑的新型绿色混凝土构件
  • 批准号:
    RGPIN-2017-04725
  • 财政年份:
    2021
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Novel Green Concrete Components for Modular Construction
用于模块化建筑的新型绿色混凝土构件
  • 批准号:
    RGPIN-2017-04725
  • 财政年份:
    2020
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Novel Green Concrete Components for Modular Construction
用于模块化建筑的新型绿色混凝土构件
  • 批准号:
    RGPIN-2017-04725
  • 财政年份:
    2019
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Control of cracking and leakage due to shrinkage and temperature effects in structures using ECC and GFRP materials
控制使用 ECC 和 GFRP 材料的结构中因收缩和温度影响而导致的开裂和泄漏
  • 批准号:
    538053-2019
  • 财政年份:
    2019
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Engage Grants Program
Novel Green Concrete Components for Modular Construction
用于模块化建筑的新型绿色混凝土构件
  • 批准号:
    RGPIN-2017-04725
  • 财政年份:
    2018
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Novel Green Concrete Components for Modular Construction
用于模块化建筑的新型绿色混凝土构件
  • 批准号:
    RGPIN-2017-04725
  • 财政年份:
    2017
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Development of Smart Self-healing Cementitious Materials for Sustainable Infrastructure
开发用于可持续基础设施的智能自修复胶凝材料
  • 批准号:
    205026-2012
  • 财政年份:
    2016
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Development of Smart Self-healing Cementitious Materials for Sustainable Infrastructure
开发用于可持续基础设施的智能自修复胶凝材料
  • 批准号:
    205026-2012
  • 财政年份:
    2015
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Development of Smart Self-healing Cementitious Materials for Sustainable Infrastructure
开发用于可持续基础设施的智能自修复胶凝材料
  • 批准号:
    205026-2012
  • 财政年份:
    2014
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual

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