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Concrete brick is an important element in construction to withstand a high mechanical load. <br /> <br /> <br /> <br /> <br /> Somehow, the construction cost in the usage of concrete brick is higher than traditional brick. <br /> <br /> <br /&g...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/14883 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Concrete brick is an important element in construction to withstand a high mechanical load. <br />
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Somehow, the construction cost in the usage of concrete brick is higher than traditional brick. <br />
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Indonesian National Standard (SNI) regulates that minimum compressive strength of the concrete is <br />
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2.5 MPa (B 25). High cost of construction anticipated in this experiment by adding some additives <br />
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to reduce the amount of cement used in the construction. Additives studied in this experiment are <br />
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trass and CaCO3 <br />
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In this experiment, some specimens prepared from Portland Cement Composite (PCC) that using <br />
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trass or CaCO3. The compositions of trass or CaCO3 used in this experiment are 10w/o, 20w/o and <br />
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30w/o. Curing process conducted in this experiment is water curing in 7, 14 and 21 days. <br />
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Compression test according to ASTM C39 conducted in this experiment is to find the compressive <br />
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strength for certain compositions. The characterization employed in this experiment is using XRD to <br />
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determine the existence of trass and PCC in concrete brick. <br />
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The result of this experiment is the higher amount of trass will reduce compressive strength <br />
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from 25.81 MPa (0w/o) to 7.94 MPa (30w/o). However, CaCO3 addition gave the optimum <br />
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compressive strength at 10w/o with 7.46 MPa. Both mixture compositions still have the compressive <br />
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strength above SNI B 25 standard. Therefore, both additives can be used as complementary <br />
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substance to reduce the amount of cement in purpose to minimize the construction cost. |
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