Experimental Investigation of Material Properties and Self-Healing Ability in a Blended Cement Mortar with Blast Furnace Slag
This paper presents the results of an experimental investigation on the material properties and self-healing ability of a blended cement mortar incorporating blast furnace slag (BFS). The effect of different types and Blaine fineness of BFS on the material properties and self-healing was investigate...
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MDPI AG
2020-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/11/2564 |
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| author | Seunghyun Na Wenyan Zhang Madoka Taniguchi Nguyen Xuan Quy Yukio Hama |
| author_facet | Seunghyun Na Wenyan Zhang Madoka Taniguchi Nguyen Xuan Quy Yukio Hama |
| author_sort | Seunghyun Na |
| collection | DOAJ |
| description | This paper presents the results of an experimental investigation on the material properties and self-healing ability of a blended cement mortar incorporating blast furnace slag (BFS). The effect of different types and Blaine fineness of BFS on the material properties and self-healing was investigated. Thirteen cement mixtures with BFS of different types and degrees of Blaine fineness are tested to evaluate the mechanical properties, namely compressive strength, bending strength, freeze–thaw, and accelerated carbonation. The pore structure is examined by means of mercury intrusion porosimetry. Seven blended mortar mixtures incorporating BFS for cement are used to evaluate the mechanical properties after applying freeze–thaw cycles until the relative dynamic modulus of elasticity reached 60%. The experimental results reveal that incorporating BFS improves the mechanical properties and self-healing ability. In the investigation of self-healing, smaller particle and high replacement ratios of BFS contribute to increasing the relative dynamic modulus of elasticity and decreasing the carbonation coefficient in the mortar after re-water curing. Moreover, BFS’s larger particles and high replacement ratio are found to provide better self-healing ability. A regression equation is created to predict the relative dynamic modulus of elasticity in mortar considering the Blaine fineness, BFS replacement ratio, and curing conditions. |
| first_indexed | 2024-03-10T19:23:04Z |
| format | Article |
| id | doaj.art-b33e4bbfed3b423b94942cd67888f43a |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T19:23:04Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-b33e4bbfed3b423b94942cd67888f43a2023-11-20T02:51:11ZengMDPI AGMaterials1996-19442020-06-011311256410.3390/ma13112564Experimental Investigation of Material Properties and Self-Healing Ability in a Blended Cement Mortar with Blast Furnace SlagSeunghyun Na0Wenyan Zhang1Madoka Taniguchi2Nguyen Xuan Quy3Yukio Hama4Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, JapanSchool of Material Science and Engineering, Henan Polytechnic University, Jiaozuo 454-000, ChinaEnvironmental Engineering Division, Northern Regional Building Research Institute, Hokkaido Research Organization, Asahikawa, Hokkaido 078-8801, JapanCollege of Environmental Technology, Graduate School of Engineering, Muroran Institute of Technology, Muroran 050-8585, JapanCollege of Environmental Technology, Graduate School of Engineering, Muroran Institute of Technology, Muroran 050-8585, JapanThis paper presents the results of an experimental investigation on the material properties and self-healing ability of a blended cement mortar incorporating blast furnace slag (BFS). The effect of different types and Blaine fineness of BFS on the material properties and self-healing was investigated. Thirteen cement mixtures with BFS of different types and degrees of Blaine fineness are tested to evaluate the mechanical properties, namely compressive strength, bending strength, freeze–thaw, and accelerated carbonation. The pore structure is examined by means of mercury intrusion porosimetry. Seven blended mortar mixtures incorporating BFS for cement are used to evaluate the mechanical properties after applying freeze–thaw cycles until the relative dynamic modulus of elasticity reached 60%. The experimental results reveal that incorporating BFS improves the mechanical properties and self-healing ability. In the investigation of self-healing, smaller particle and high replacement ratios of BFS contribute to increasing the relative dynamic modulus of elasticity and decreasing the carbonation coefficient in the mortar after re-water curing. Moreover, BFS’s larger particles and high replacement ratio are found to provide better self-healing ability. A regression equation is created to predict the relative dynamic modulus of elasticity in mortar considering the Blaine fineness, BFS replacement ratio, and curing conditions.https://www.mdpi.com/1996-1944/13/11/2564frost resistanceself-healing abilityblast furnace slagfreeze–thaw cyclesrelative dynamic modulus of elasticitycarbonation coefficient |
| spellingShingle | Seunghyun Na Wenyan Zhang Madoka Taniguchi Nguyen Xuan Quy Yukio Hama Experimental Investigation of Material Properties and Self-Healing Ability in a Blended Cement Mortar with Blast Furnace Slag Materials frost resistance self-healing ability blast furnace slag freeze–thaw cycles relative dynamic modulus of elasticity carbonation coefficient |
| title | Experimental Investigation of Material Properties and Self-Healing Ability in a Blended Cement Mortar with Blast Furnace Slag |
| title_full | Experimental Investigation of Material Properties and Self-Healing Ability in a Blended Cement Mortar with Blast Furnace Slag |
| title_fullStr | Experimental Investigation of Material Properties and Self-Healing Ability in a Blended Cement Mortar with Blast Furnace Slag |
| title_full_unstemmed | Experimental Investigation of Material Properties and Self-Healing Ability in a Blended Cement Mortar with Blast Furnace Slag |
| title_short | Experimental Investigation of Material Properties and Self-Healing Ability in a Blended Cement Mortar with Blast Furnace Slag |
| title_sort | experimental investigation of material properties and self healing ability in a blended cement mortar with blast furnace slag |
| topic | frost resistance self-healing ability blast furnace slag freeze–thaw cycles relative dynamic modulus of elasticity carbonation coefficient |
| url | https://www.mdpi.com/1996-1944/13/11/2564 |
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