Appearance Behavior of Compressive Strength on Casting Calcium Carbonate

Arinaga, Suenori; Norimasa, Masashige; Terao, N.; Yukihira, Nobuyoshi; Oike, Tetsuro

doi:10.3130/aijs.70.23_2

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…This improvement is attributed to the filling of gaps resulting from the conversion of calcium hydroxide into calcium carbonate (Matsuya et al, 2007). Strength improvements from carbonation have also been demonstrated for various compacts containing calcium hydroxide (Arinaga et al 2004(Arinaga et al , 2005Norimasa et al 2011). Thus, practicable compacts can be prepared by compacting crushed and milled HC containing added HPC or sludge, or by performing carbonation treatment.…”

Section: Strength Improvement Of Hc Compactsmentioning

confidence: 99%

“…In the second approach, carbonation treatment was applied to the prepared compacts. Arinaga et al (2004Arinaga et al ( , 2005 and Norimasa et al (2011) prepared compacts of calcium hydroxide and demonstrated that subjecting the compacts to carbonation treatment significantly improved their strength. Finally, the possibility of controlling the volume change of the compacts caused by moisture loss or absorption was investigated by changing their moisture content.…”

Section: Introductionmentioning

confidence: 99%

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Recycling of Hardened Cementitious Material by Pressure and Control of Volumetric Change

Sakai

Tarekegne

Kishi

2016

ACT

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This study proposes a novel method for recycling concrete waste by compaction. The advantages of the proposed method include its high production speed and complete recycling; all of the concrete waste was used without segregation of gravel or other components. First, hardened cement paste (HCP) was examined, crushed, milled, and compacted. These formed compacts showed high strength. Compacts of hardened concrete (HC) were prepared after crushing and milling; however, their strength was low. The processes of adding HCP or sludge cakes and performing carbonation treatment were investigated to increase the HC compact strength, and all treatments were found to be effective. Another advantage of this compaction method is that the control of volumetric changes due to moisture loss or absorption can be achieved by adequately drying the powder before compaction.

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Section: Strength Improvement Of Hc Compactsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recycling of Hardened Cementitious Material by Pressure and Control of Volumetric Change

Sakai

Tarekegne

Kishi

2016

ACT

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Development of Casting Calcium Carbonate Containing Fly Ash

Norimasa¹,

Arinaga²,

Oike³

et al. 2011

AIJ J. Technol. Des.

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In order to clarify fundamental properties of the casting calcium carbonate with 60% fly ash content, the reaction property and the compressive strength are investigated. The result are as follows; 1) The reaction property of the casting varies with different types of fly ash. 2) In the case of using fly ash, which has more amount of CaO, the casting has less the rate of water absorption. 3) Initial compressive strength of the casting is less than 10N/mm 2 . But the casting acquires the compressive strength more than 40 N/mm 2 as the carbonation proceeds.Constec Engi, Co., Ltd., Dr. Eng. In order to clarify fundamental properties of the casting calcium carbonate with 60% fly ash content, the reaction property and the compressive strength are investigated. The result are as follows; 1) The reaction property of the casting varies with different types of fly ash. 2) In the case of using fly ash, which has more amount of CaO, the casting has less the rate of water absorption. 3) Initial compressive strength of the casting is less than 10N/mm 2 . But the casting acquires the compressive strength more than 40 N/mm 2 as the carbonation proceeds.

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Development of Non-Sintered Ceramic Containing Basalt Powder

Kim

Jeong

2014

Journal of the Korea Society For Power System Engineering

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Appearance Behavior of Compressive Strength on Casting Calcium Carbonate

Cited by 3 publications

References 3 publications

Recycling of Hardened Cementitious Material by Pressure and Control of Volumetric Change

Recycling of Hardened Cementitious Material by Pressure and Control of Volumetric Change

Development of Casting Calcium Carbonate Containing Fly Ash

Development of Non-Sintered Ceramic Containing Basalt Powder

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