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Use of Compactation Tests for Defining Process Mixtures Parameters to Concrete Blocks
Abstract:
In recent years, Brazil has been going through a period of economic growth and is now facing the acceleration of this development, the presence of engineering in all its areas, becomes crucial to sustain this condition. A primary form of this chain, the use of conforming materials, joins an entire production process which should result in works that have as their main focus the minimum quality of the finished product. For this reason, definition and understanding of aspects such as mixture and all parameters involved in the production of materials becomes critical. For concrete block, there is a series of steps that will culminate in a final product quality, always appropriate to the project while respecting normative aspects. Within these stages of production of concrete blocks, using the method of lower volume of voids, this paper will explore the definition of the best mixes of aggregate/coarse and the definition of the moisture content of the mixture and the correlation of compacted test specimens, with blocks produced using specific standards for soil cement NBR 12023/92 [ and 12024/92 [. In this study we observed that there is a correlation of 95.30% compressive strength of the compact tests specimens with the concrete blocks producing in vibro press. This correlation allows us to design a dosing process using a previous best volume of material due to the smaller size of CPs, streamlining and minimizing the costs of the definition of dosing parameters. In relation to the moisture content, it was noted that the value set in the compaction test must be adjusted when the blocks are made in the press, since energy of compaction is larger in that case. Thus for the production of the blocks, humidity value was 10.71% less than that defined by the compaction test.
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375-385
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Online since:
March 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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