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Contribution in Study of some physical and mechanical properties of foamed concrete

مساهمة في دراسة بعض الخصائص الفيزيائية و الميكانيكية للبيتون الرغوي

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 Publication date 2015
and research's language is العربية
 Created by Shamra Editor




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foamed concrete is a concrete made by cement slurry mixed with foaming agent, so that foamed concrete is lighter than conventional concrete. The objectives of this study is to produce this kind of concrete, and to study some of its physical and mechanical properties. Mix design of concrete was made for four required densities (1000, 1300,1600,1900 kg/m3), cement content of 350 kg/ m3, and water to cement ratio equal to 0.5. Different tests were performed to determine some properties of product concrete such as density, compressive strength and splitting tensile strength. The results demonstrated the possibility of production foamed concrete with wide range of density and strength. The oven dry density of foamed concrete was in the range of (870-1773 kg/m3) , compressive strength was in the range of (2.95-16.2 Mpa ), and the splitting strength was in the range of (0.32-1.76Mpa).


Artificial intelligence review:
Research summary
تتناول هذه الدراسة البحث في إنتاج ودراسة بعض الخصائص الفيزيائية والميكانيكية للبيتون الرغوي، وهو نوع من البيتون يتميز بخفة وزنه مقارنة بالبيتون التقليدي. تم تصميم الخلطة البيتونية لأربع كثافات تصميمية (1000، 1300، 1600، 1900 كجم/م²) مع نسبة ماء إلى اسمنت 0.5٪ وعيار اسمنت 350 كجم/م². أظهرت النتائج إمكانية إنتاج بيتون رغوي بمجال واسع للكتافة والمقاومة، حيث تراوحت الكثافة الجافة بين 870 و1773 كجم/م²، والمقاومة على الضغط بين 2.95 و16.2 ميجا باسكال، والمقاومة على الشد بالانفلاق بين 0.32 و1.76 ميجا باسكال. تم استخدام مواد مختلفة مثل الاسمنت، الرمل، والمادة الراغية لإنتاج الخلطات البيتونية، وتم اختبار العينات على الكثافة الجافة، المقاومة على الضغط، والمقاومة على الشد بالانفلاق. أظهرت النتائج أن زيادة نسبة المادة الراغية تؤدي إلى انخفاض الكثافة الجافة والمقاومة على الضغط والشد بالانفلاق، وتم إيجاد علاقات رياضية تربط بين هذه المتغيرات.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة مهمة في مجال البحث عن مواد بناء خفيفة الوزن وذات خصائص ميكانيكية جيدة. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، لم يتم التطرق إلى تأثير الظروف البيئية المختلفة مثل الرطوبة ودرجات الحرارة على خصائص البيتون الرغوي. ثانياً، كان من الممكن توسيع نطاق الدراسة ليشمل أنواعًا أخرى من المواد الراغية لمعرفة تأثيرها على الخصائص الميكانيكية. ثالثاً، لم يتم التطرق إلى تكلفة الإنتاج ومدى جدواه الاقتصادية مقارنة بالبيتون التقليدي. هذه النقاط يمكن أن تكون مواضيع لدراسات مستقبلية لتحسين فهمنا لهذا النوع من البيتون.
Questions related to the research
  1. ما هو الهدف الرئيسي من هذه الدراسة؟

    الهدف الرئيسي هو إنتاج ودراسة بعض الخصائص الفيزيائية والميكانيكية للبيتون الرغوي.

  2. ما هي الكثافات التصميمية التي تم اختبارها في الدراسة؟

    تم اختبار أربع كثافات تصميمية: 1000، 1300، 1600، 1900 كجم/م².

  3. ما هي النتائج الرئيسية المتعلقة بالمقاومة على الضغط؟

    تراوحت المقاومة على الضغط بين 2.95 و16.2 ميجا باسكال.

  4. كيف تؤثر نسبة المادة الراغية على خصائص البيتون الرغوي؟

    زيادة نسبة المادة الراغية تؤدي إلى انخفاض الكثافة الجافة والمقاومة على الضغط والشد بالانفلاق.


References used
ACI Committee 213R-03, "Guide for Structural Lightweight Aggregate Concrete", American Concrete Institute, 2003, 38
Building and constructer research center, "Foamed Concrete", June 2014. <http://www.hbrc.edu.eg/>.12
BYUN, K. J; SONG, W; PARK, S. S; SONG, Y. C. " Development of structural lightweight foamed concrete using polymer foam agent ".June 2014. <http://www.parkss87.com.ne.kr/foam.pdf> , 9
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