On the Strength Development of Eco-Cement Concrete

Kaneko, Tatsuki; Moriya, K.; Tamai, Takayuki; Kasami, Hideo

doi:10.3130/aijs.72.1_5

Nihon Kenchiku Gakkai Kozokei Ronbunshu

2007

DOI: 10.3130/aijs.72.1_5

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On the Strength Development of Eco-Cement Concrete

Tatsuki Kaneko

K. Moriya

Takayuki Tamai

et al.

Abstract: concrete was srnal］ er than the same water −cement rati 。 of ordinary cement concrete 、 Influence ofcuring tcmperature was the largest at thc age or 7 days， while at the age of 28 da ｝・ s ， it was 旺 ot co 面 rmed ． Furthermor¢ ， this paper proposes new standards frorn the abQvc results ， An additiun taking into account the disorepanc ｝・ between the strength o 負 he concrete in tho structure and the strength of speoimens ( ∠］ F ) ， temperature compensated specified streng 出 T ， and time f［〕r 童 brmwQrk to remain… Show more

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2009

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Cited by 3 publications

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Influence of Blast-Furnace Slag Powder on Long Age Strength of Concrete With Ecocement

Nagashio¹,

Masuda²

2009

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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A report has been compiled on the use of blast-furnace slag powder with Ecocement to improve the long-term strength gain. This study discusses the long-term strength gain of Ecocement with blast-furnace slag powder that it examined the influence of the water cementitious material ratio, mixing ratio of the blast furnace slag powder and the curing condition, in order to obtain basic data to clarify the mechanism on the long-term strength gain of Ecocement with blast-furnace slag powder. As a result, it was able to be confirmed that the long-term strength gain of Ecocement with blast-furnace slag powder was improved regardless of the water cementitious material ratio, mixing ratio of the blast furnace slag powder and the curing condition. Results of pore size distribution, Ecocement with blast-furnace slag powder was acknowledged densification of pore volume. This study had a high correlation between a decrease in the pore volume of 0.01µm or more and compressive strength, it was clarified that the long-term strength gain had improved because of a decrease in these pore volume�

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Influence of Blast-Furnace Slag Powder on Long Age Strength of Concrete With Ecocement

Nagashio¹,

Masuda²

2009

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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On the Strength Development and Time for Formwork to Remain in Place of Concrete Effected With Types of Cements

Kaneko¹,

Tamai²,

Ishikawa³

et al. 2009

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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��This paper presents the results of experimental studies on the strength characteristics of concrete. Strength development of concrete is influenced by the types of cements and the curing temperature. Therefore, in this research, it is found that the temperature range for temperature compensated specified strength T of JASS 5 is proper, and the time for formwork to remain in place is proposed according to the types of cements. As for Young's modulus, correction factor for the types of cements should be considered to the AIJ expression of it.

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Resistance to Frost Damage at Early Age and Strength Deveropment at Low-Temperature on Concrete Using Various Recycling Materials

Mimori¹,

Tairaku²,

Hama³

et al. 2009

AIJ J. Technol. Des.

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Toshiji MIMORITakao TAIRAKU Yukio HAMA Osamu SENBU This paper reports the results of the experiment on resistance to frost damage at early age and strength development at low-temperature on concrete using various recycling materials.Results show compressive strength to prevent frost damage at early age can be set at 5N/mm 2 , which is equal with normal concrete in any case. Low-temperature strength development of concrete using high-strength artificial aggregate, electric arc furnace oxidizing slag aggregate and normal eco cement is equal with normal concrete. This paper reports the results of the experiment on resistance to frost damage at early age and strength development at lowtemperature on concrete using various recycling materials.Results show compressive strength to prevent frost damage at early age can be set at 5N/mm 2 , which is equal with normal concrete in any case. Low-temperature strength development of concrete using high-strength artificial aggregate,electric arc furnace oxidizing slag aggregate and normal eco cement is equal with normal concrete.

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On the Strength Development of Eco-Cement Concrete

Cited by 3 publications

References 1 publication

Influence of Blast-Furnace Slag Powder on Long Age Strength of Concrete With Ecocement

Influence of Blast-Furnace Slag Powder on Long Age Strength of Concrete With Ecocement

On the Strength Development and Time for Formwork to Remain in Place of Concrete Effected With Types of Cements

Resistance to Frost Damage at Early Age and Strength Deveropment at Low-Temperature on Concrete Using Various Recycling Materials

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