KR970042387A - Low Heat Exponential Concrete Compositions Containing Fly Ash - Google Patents

Low Heat Exponential Concrete Compositions Containing Fly Ash Download PDF

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Publication number
KR970042387A
KR970042387A KR1019950069030A KR19950069030A KR970042387A KR 970042387 A KR970042387 A KR 970042387A KR 1019950069030 A KR1019950069030 A KR 1019950069030A KR 19950069030 A KR19950069030 A KR 19950069030A KR 970042387 A KR970042387 A KR 970042387A
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KR
South Korea
Prior art keywords
fly ash
low heat
concrete composition
exponential
cement
Prior art date
Application number
KR1019950069030A
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Korean (ko)
Inventor
노재호
박연동
한정호
김훈
Original Assignee
이재복
동양시멘트 주식회사
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Publication date
Application filed by 이재복, 동양시멘트 주식회사 filed Critical 이재복
Priority to KR1019950069030A priority Critical patent/KR970042387A/en
Publication of KR970042387A publication Critical patent/KR970042387A/en

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Abstract

본 발명은 플라이애쉬를 함유하는 저발열 저수축 콘크리트 조성물에 관한 것으로서, 더욱 상세하게는 콘크리트 조성에 있어서 시멘트의 일부를 플라이애쉬(fly-ash)로 치환하고 혼화제를 다량 첨가함으로서 다위시멘트량 및 단위수량을 대폭 감소하여 수화발열량 및 건조수축을 저감시켜 매스 콘크리트(mass concrete) 공사나 긴벽체 공사 등을 시행할 경우 균열을 방지할 수 있는 새로운 저발열 저수축 콘크리트 조성물에 관한 것이다.The present invention relates to a low heat generation low shrinkage concrete composition containing fly ash, and more particularly, in the concrete composition by replacing a part of cement with fly-ash and adding a large amount of admixture, The present invention relates to a new low heat generation low shrinkage concrete composition which can prevent cracking when mass concrete construction or long wall construction is performed by greatly reducing the quantity of water and reducing the amount of hydration heat and drying shrinkage.

Description

플라이애쉬를 함유하는 저발열 지수축 콘크리트 조성물.Low heat generation exponential concrete composition containing fly ash.

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (1)

시멘트, 물 골재 및 혼합재료로 이루어지고 타설 후 28일의 압축강도가 200∼350 kgf/㎠인 콘크리트 조성물에 있어서, 상기 시멘트중 15∼40중량%가 플라이애쉬로 치환되어 있고 혼화제로서 통상의 공기연행제, 감수제, 공기연행 감수제, 고성능 감수제 및 고성능 공기연행 감수제가 치환전 시멘트 100 중량%에 대해1.0∼2.5 중량%로 첨가 함유되어 이루어진 것을 특징으로 하는 플라이애쉬를 함유하는 저발열 저수축 콘크리트 조성물.In a concrete composition composed of cement, water aggregate, and mixed material, and having a compressive strength of 200 to 350 kgf / cm 2 after 28 days of pouring, 15 to 40% by weight of the cement is substituted with fly ash, which is a conventional air admixture. Low heat generation low shrinkage concrete composition containing a fly ash, characterized in that the entrainer, water reducing agent, air entraining agent, high performance water reducing agent and high performance air entraining agent is added in an amount of 1.0 to 2.5% by weight based on 100% by weight of cement before substitution .
KR1019950069030A 1995-12-30 1995-12-30 Low Heat Exponential Concrete Compositions Containing Fly Ash KR970042387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950069030A KR970042387A (en) 1995-12-30 1995-12-30 Low Heat Exponential Concrete Compositions Containing Fly Ash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950069030A KR970042387A (en) 1995-12-30 1995-12-30 Low Heat Exponential Concrete Compositions Containing Fly Ash

Publications (1)

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KR970042387A true KR970042387A (en) 1997-07-24

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KR1019950069030A KR970042387A (en) 1995-12-30 1995-12-30 Low Heat Exponential Concrete Compositions Containing Fly Ash

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100645544B1 (en) * 2006-02-01 2006-11-15 (주) 선엔지니어링종합건축사사무소 Crack reducing method of mass concrete for mat foundation considering the combined addition of fly ash and chemical admixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100645544B1 (en) * 2006-02-01 2006-11-15 (주) 선엔지니어링종합건축사사무소 Crack reducing method of mass concrete for mat foundation considering the combined addition of fly ash and chemical admixture

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