توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Investigation of Bond Behavior of High Performance Concrete and Ordinary Concrete in Bending Using Bending Test
نویسنده(ها): ،
اطلاعات انتشار: نخستین کنفرانس بین المللی تکنولوژی بتن، سال
تعداد صفحات: ۸
Although many investigations have been carried out on high performance concrete (HPC), properties of this material aren’t well known those of ordinary concrete (OC) nowadays. On the other hand, current national and international codes, related to reinforced concrete, are usually prepared by evaluating the results of experimental and theoretical studies together on OC with lower compressive strength than 40 MPa. Thus it isn’t possible to say that equations and recommendations given in these codes are valid for HPC. The main purpose of this study is to investigate bond behavior of OC and HPC in bending using Standard Belgium Hinge Beam Test (SBHBT), comparatively. The results obtained from this study show that bond strength of HPC is considerable higher than that of OC. Therefore, development length 2 0f used for OC can be decreased in caseof HPC usage. This result shows that “Building Code Requirements for Reinforced Concrete” is not valid designing of structures constructed by using HPC<\div>

۲The Use of Lightweight Concrete in Reinforced Concrete Structures and Status in Turkey
نویسنده(ها): ، ،
اطلاعات انتشار: نخستین کنفرانس بین المللی تکنولوژی بتن، سال
تعداد صفحات: ۷
That ordinary concrete used in reinforced concrete structures has high unit weight is one of the undesirable properties of this concrete. Since large part of the loads on structure consist of self weight of structure or structural members. Therefore, this situation becomes a problem during passing of large spans and construction of high structures. In addition these structures are excessively affected by earthquakes because of their high self weight. On the other hand, it is well–known that ordinary concrete has high thermal conductivity and this increases heating expenses. Under the circumstances, main purpose of this study is to investigate advantages, disadvantages of lightweight concrete compared to ordinary concrete. In addition, producing, placing, properties, importance, future and application of lightweight concrete are explained. Finally some conclusions and recommendations inferred from this study are given.<\div>
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