Strength Properties of Hardened Concrete Produced with Natural Aggregates for Different Water/Cement Ratios

Yıl 2018, , 280 - 287, 31.12.2018

Esra Tuğrul Tunç

https://doi.org/10.31590/ejosat.486093

Cited By: 7

Öz

Due to the
competition in the concrete sector, there is a need for better quality and
low-cost concrete production in recent years. One of the changes that can be
made in this direction is the use of natural aggregates, which are expected to
be particularly strong and obtained from river beds, in the production of
concrete. It is intended to provide economic gain in Turkey, a country which is
rich in terms of riverbeds, by evaluating these natural aggregates in the
concrete production. It is common to use crushed stones as aggregates in
concrete. However, such aggregates are difficult and costly to manufacture.
Therefore, it is necessary to evaluate the existing natural resources
efficiently. This study aims to investigate the effects of natural aggregates
on hardened concrete properties. In the present study, quartzitic natural
aggregates from the river beds in the Mediterranean region were used as
aggregate. The experiments were carried out for different water/cement ratios
by keeping the aggregate granulometry and cement dosage constant. A number of
concrete samples produced within the scope of this study were subjected to
hardened concrete tests such as compressive strength and splitting tensile
strength. The results obtained are in accordance with the relevant TS
standards. Thus, it was determined that these aggregates could be used in
concrete for concrete strength. The strength of concrete samples and
water/cement ratio were determined to be inversely proportional. In addition, a
good fit was achieved between the results obtained from the compressive
strength and splitting tensile strength tests.

Anahtar Kelimeler

Natural aggregate, hardened concrete properties, water/cement ratio, compressive strength, splitting tensile strength

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