NON-TRADITIONAL NON-DESTRUCTIVE TESTING OF THE ALKALI-ACTIVATED SLAG MORTAR DURING THE HARDENING

被引:2
|
作者
Topolar, Libor [1 ]
Rypak, Peter [1 ]
Timcakova-Samarkova, Kristyna [1 ]
Pazdera, Lubos [1 ]
Rovnanik, Pavel [1 ]
机构
[1] Brno Univ Technol, Fac Civil Engn, Veveri 331-95, Brno 60200, Czech Republic
来源
MATERIALI IN TEHNOLOGIJE | 2016年 / 50卷 / 01期
关键词
acoustic-emission method; loss in mass; impact-echo method; ultrasound testing; alkali-activated slag mortars;
D O I
10.17222/mit.2014.130
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper reports the results of the measurements of alkali-activated slag mortars made during the hardening and drying of specimens. The alkali-activated slag is a material with a great potential for practical use. The main drawback of this material is its high level of autogenous and, especially, drying shrinkage, which causes a deterioration in the mechanical properties. The aim of this paper is to present the effects of the treatment method for mortars and the curing time on the microstructures of the alkali-activated slag mortars. The knowledge of the microstructure/performance relationship is the key to a true understanding of the material behaviour. The results obtained in the laboratory are useful for understanding the various stages of the micro-cracking activity during the hardening process in quasi-brittle materials such as alkali-activated slag mortars and for their extension to field applications. Non-destructive acoustic-analysis methods the impact-echo method as a traditional method and the acoustic-emission method as a non-traditional method for civil engineering were used for the experiment. The principle of the impact-echo method is based on analysing the response of an elastic-impulse-induced mechanical wave. Acoustic emission is the term for the noise emitted by materials and structures when they are subjected to stress. The types of stress can be mechanical, thermal or chemical. Ultrasound testing and the loss in mass were used as complementary methods for the tested samples.
引用
收藏
页码:7 / 10
页数:4
相关论文
共 50 条
  • [1] MAGNESIUM SULPHATE ATTACK ON ALKALI-ACTIVATED SLAG MORTAR
    Allahverdi, Ali
    Hashemi, Hamideh
    [J]. NON-TRADITIONAL CEMENT & CONCRETE IV, 2011, : 590 - 598
  • [2] SODIUM SULPHATE ATTACK ON ALKALI-ACTIVATED SLAG MORTAR
    Allahverdi, Ali
    Hashemi, Hamideh
    [J]. NON-TRADITIONAL CEMENT & CONCRETE IV, 2011, : 581 - 589
  • [3] Resistance of alkali-activated slag mortar to abrasion and fire
    Karahan, Okan
    Yakupoglu, Aslan
    [J]. ADVANCES IN CEMENT RESEARCH, 2011, 23 (06) : 289 - 297
  • [4] Shrinkage Characteristics of Alkali-Activated Slag Mortar with SAP
    Choi, Young Cheol
    Moon, Gyu Don
    Oh, Sungwoo
    Jung, Sang Hwa
    Lee, Kwang Myong
    [J]. 8TH RILEM INTERNATIONAL CONFERENCE ON MECHANISMS OF CRACKING AND DEBONDING IN PAVEMENTS, 2016, 13 : 313 - 318
  • [5] Chemo-physico-mechanical characteristics of high-strength alkali-activated mortar containing non-traditional supplementary cementitious materials
    Sumesh, Mathialagan
    Alengaram, U. Johnson
    Jumaat, Mohd Zamin
    Mo, Kim Hung
    Singh, Ramesh
    Nayaka, Ramappa Ramesh
    Srinivas, Karthick
    [J]. JOURNAL OF BUILDING ENGINEERING, 2021, 44
  • [6] Chemo-physico-mechanical characteristics of high-strength alkali-activated mortar containing non-traditional supplementary cementitious materials
    Sumesh, Mathialagan
    Alengaram, U. Johnson
    Jumaat, Mohd Zamin
    Mo, Kim Hung
    Singh, Ramesh
    Nayaka, Ramappa Ramesh
    Srinivas, Karthick
    [J]. Journal of Building Engineering, 2021, 44
  • [7] The influence of steel slag and ferronickel slag on the properties of alkali-activated slag mortar
    You, Nanqiao
    Li, Baoliang
    Cao, Ruilin
    Shi, Jinjie
    Chen, Chun
    Zhang, Yamei
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2019, 227
  • [8] Phase identification and micromechanical properties of non-traditional and natural pozzolan based alkali-activated materials
    Arachchige, Roshan Muththa
    Olek, Jan
    Rajabipour, Farshad
    Peethamparan, Sulapha
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2024, 441
  • [9] Investigation of Silane Impregnation for Protection of Alkali-Activated Slag Mortar
    Li, Jin
    Chen, Peiyuan
    Cai, Haibing
    Xu, Ying
    Rasulov, Murodjon
    [J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2021, 2021
  • [10] Effect of CaO on the Autogenous Shrinkage of Alkali-Activated Slag Mortar
    Zheng, Dengdeng
    Ji, Tao
    Wang, Guojie
    [J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2021, 2021