التفاصيل البيبلوغرافية
| العنوان: |
Effect of Compaction Pressure in the Fresh State on The Resistance of Concrete's Compression and Tension. (English) |
| المؤلفون: |
Majeed, Samer Sami, Wadie, Rafal Naheth |
| المصدر: |
Al-Rafadain Engineering Journal; 2012, Vol. 20 Issue 4, p30-37, 8p |
| مصطلحات موضوعية: |
CONCRETE construction, COMPACTING, ADHESIVE cements, STRAINS & stresses (Mechanics), MATERIALS compression testing, TENSILE architecture |
| مستخلص: |
This present research presents an experimental study on the behavior of the compacted concrete filled in cylindrical steel molds with dimensions of (100 mm Diameter and 200 mm Length). In this study, different compaction pressure values have been used to compact concrete mixtures, which differ in water to cement rates using electronic compression machine. Then, compression and tension strength of a concrete at the age of (28) days, under compaction pressure in its fresh state, compared with the compression and tension values of a concrete, of the same mixing rates, unexposed to pressure, in order to study the effect of compaction pressure on the concrete in its fresh state, on the compression and tension values of the solid concrete. (90) Specimens under the impact of the stresses of compression and tension at the age of (28) days have been tested and the effect of water to cement rates and the compaction pressure on the maximum resistance of the columns have been tested. The results showed, that the compaction stresses of the concrete, affect the ultimate capacity of the columns, where they increase the compression and tension resistance of the concrete at a certain limited value of subjected compaction pressure value in the fresh state, and that the mixture with (w/c = 0.45) requires the minimum value of compact pressure to produce the maximum value of concrete resistance, while the mixtures with (w/c = 0.50) and (w/c = 0.55) require higher values of compact pressure, in order to introduce higher values of concrete resistance. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
