start-ver=1.4 cd-journal=joma no-vol= cd-vols= no-issue= article-no= start-page=T4-6 2 end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201308 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Strength and Durability of Concrete with Blast Furnace Slag en-subtitle= kn-subtitle= en-abstract= kn-abstract=The properties of concrete using blast furnace as binder and fine aggregate have been investigated in this study. The experiments focus on the properties of concrete such as compressive strength and young's modulus, carbonation, diffusion of chloride ions, resistance to sulfate attack and resistance to freeze and thaw. The experimental results show that when blast furnace slag is used in concrete, it improves the durability properties of concrete. However, the combination of using both blast furnace slag as binder and fine aggregate shows a greater improvement of those properties of concrete. en-copyright= kn-copyright= en-aut-name=JARIYATHITIPONGPaweena en-aut-sei=JARIYATHITIPONG en-aut-mei=Paweena kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=HOSOTANIKazuyoshi en-aut-sei=HOSOTANI en-aut-mei=Kazuyoshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=FUJIITakashi en-aut-sei=FUJII en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=AYANOToshiki en-aut-sei=AYANO en-aut-mei=Toshiki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Landes Co., Ltd affil-num=2 en-affil= kn-affil=Landes Co., Ltd affil-num=3 en-affil= kn-affil=Okayama University affil-num=4 en-affil= kn-affil=Okayama University en-keyword=Ground granulated blast furnace slag kn-keyword=Ground granulated blast furnace slag en-keyword=Blast furnace slag sand kn-keyword=Blast furnace slag sand en-keyword=Carbonation kn-keyword=Carbonation en-keyword=Drying shrinkage strain kn-keyword=Drying shrinkage strain END start-ver=1.4 cd-journal=joma no-vol= cd-vols= no-issue= article-no= start-page=W1-7 3 end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201308 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Effect of chemical admixture on property of fresh mortar using sludge water en-subtitle= kn-subtitle= en-abstract= kn-abstract=Addition of sludge water as a part of mixing water had little influence on strength and durability of hardened concrete, but caused a slump decrease of fresh concrete. The decrease of slump was improved by addition of a certain set retarder such as gluconate into sludge water due to control of cement hydration. Some of polymers were also effective in improvement of slump. However hydration of cement was observed in those cases of polymers. Therefore it is presumed such the polymers improve slump not by hydration control effect but by another one. en-copyright= kn-copyright= en-aut-name=FUJIITakashi en-aut-sei=FUJII en-aut-mei=Takashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SAITOTadashi en-aut-sei=SAITO en-aut-mei=Tadashi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=AYANOToshiki en-aut-sei=AYANO en-aut-mei=Toshiki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=Okayama University affil-num=2 en-affil= kn-affil=Nagao & Co., Ltd. affil-num=3 en-affil= kn-affil=Okayama University en-keyword=Sludge water kn-keyword=Sludge water en-keyword=Mortarflow kn-keyword=Mortarflow en-keyword=Organic compound kn-keyword=Organic compound en-keyword=Polymer kn-keyword=Polymer en-keyword=Sludge sedimentation kn-keyword=Sludge sedimentation END