Effect Of The Addition Of Wastepaper To Concrete Mix
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Date
2009-08
Authors
Shukeri, Ritzawaty Mohamad
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
This research reports on the results of an investigation of utilization of wastepaper as additional materials in concrete mixes, for which it must be assured that the resulting concrete has the proper mechanical strength. In preliminary works on the subject, it was found that the addition of wastepaper reduces the mechanical strength of concrete. The test results also revealed that as the content of the paper increased the water to cement ratio for the mix was also increased. With the addition of 25% wastepaper in proportion to the amount of cement, the mechanical strength decreases significantly. Concrete mixes containing various contents of the paper were prepared and basic strength characteristics such as compressive strength, splitting tensile, flexural, ultrasonic pulse velocity, carbonation, water absorption, and unit weight were determined and compared with the controlled mix. Four concrete mixes containing the wastepaper, which are controlled mix, 5%, 10%, 15% as an additional materials to concrete were prepared with ratios of 1:2:3 by weight of cement, sand, and gravel respectively. It was found that wastepaper content of up to 5% in concrete mix can produce acceptable concrete strength for structural applications. It was also found that concrete tensile strength increased by 3.5% as a result of the 5% wastepaper addition.
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Keywords
Effect of the addition of wastepaper , to concrete mix