Reduction of Cracking and Shrinkage in Compressed Clay Beams during Drying
Uncontrolled evaporation of moisture from compressed clay beams can cause surface cracks, resulting in reduction of strength. This paper presents various treatments applied to clay beams during the process of casting, compacting and drying in order to curtail the possibility of cracking and to dec...
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| Format: | Article |
| Language: | English |
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Mehran University of Engineering and Technology
2016-07-01
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| Series: | Mehran University Research Journal of Engineering and Technology |
| Subjects: | |
| Online Access: | http://publications.muet.edu.pk/research_papers/pdf/pdf1367.pdf |
| _version_ | 1811273758127685632 |
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| author | NAWAB ALI LAKHO MUHAMMAD AUCHAR ZARDARI NAEEM AZIZ MEMON |
| author_facet | NAWAB ALI LAKHO MUHAMMAD AUCHAR ZARDARI NAEEM AZIZ MEMON |
| author_sort | NAWAB ALI LAKHO |
| collection | DOAJ |
| description | Uncontrolled evaporation of moisture from compressed clay beams can cause surface cracks, resulting
in reduction of strength. This paper presents various treatments applied to clay beams during the
process of casting, compacting and drying in order to curtail the possibility of cracking and to decrease
percentage of drying shrinkage. Following treatments were applied to the beams during casting and
drying: (i) a steel plate and double layer of plastic sheet was provided between the beam and the plank, (ii)
the beam was enveloped with a propylene fabric sheet during casting and (iii) beams were covered with
plastic sheet during drying. Using these treatments, the clay beams were cast and compacted at various
intensities of compaction. The results show that the drying shrinkage was reduced to minimum and the
cracks were curtailed. The rate of drying shrinkage was decreased depending upon the level of compaction.
Thus at the higher degree of compaction, more density of clay beams was achieved, which resulted in higher degree of compressive strength in baked and unbaked state |
| first_indexed | 2024-04-12T23:05:07Z |
| format | Article |
| id | doaj.art-d74be1d00ac8499f8d6357ff84337575 |
| institution | Directory Open Access Journal |
| issn | 0254-7821 2413-7219 |
| language | English |
| last_indexed | 2024-04-12T23:05:07Z |
| publishDate | 2016-07-01 |
| publisher | Mehran University of Engineering and Technology |
| record_format | Article |
| series | Mehran University Research Journal of Engineering and Technology |
| spelling | doaj.art-d74be1d00ac8499f8d6357ff843375752022-12-22T03:12:56ZengMehran University of Engineering and TechnologyMehran University Research Journal of Engineering and Technology0254-78212413-72192016-07-013533954001367Reduction of Cracking and Shrinkage in Compressed Clay Beams during DryingNAWAB ALI LAKHOMUHAMMAD AUCHAR ZARDARINAEEM AZIZ MEMONUncontrolled evaporation of moisture from compressed clay beams can cause surface cracks, resulting in reduction of strength. This paper presents various treatments applied to clay beams during the process of casting, compacting and drying in order to curtail the possibility of cracking and to decrease percentage of drying shrinkage. Following treatments were applied to the beams during casting and drying: (i) a steel plate and double layer of plastic sheet was provided between the beam and the plank, (ii) the beam was enveloped with a propylene fabric sheet during casting and (iii) beams were covered with plastic sheet during drying. Using these treatments, the clay beams were cast and compacted at various intensities of compaction. The results show that the drying shrinkage was reduced to minimum and the cracks were curtailed. The rate of drying shrinkage was decreased depending upon the level of compaction. Thus at the higher degree of compaction, more density of clay beams was achieved, which resulted in higher degree of compressive strength in baked and unbaked statehttp://publications.muet.edu.pk/research_papers/pdf/pdf1367.pdfCompressed Earth BlocksAffordable HousesCompactionIndigenous ClayDrying Shrinkage and Cracks |
| spellingShingle | NAWAB ALI LAKHO MUHAMMAD AUCHAR ZARDARI NAEEM AZIZ MEMON Reduction of Cracking and Shrinkage in Compressed Clay Beams during Drying Mehran University Research Journal of Engineering and Technology Compressed Earth Blocks Affordable Houses Compaction Indigenous Clay Drying Shrinkage and Cracks |
| title | Reduction of Cracking and Shrinkage in Compressed Clay Beams during Drying |
| title_full | Reduction of Cracking and Shrinkage in Compressed Clay Beams during Drying |
| title_fullStr | Reduction of Cracking and Shrinkage in Compressed Clay Beams during Drying |
| title_full_unstemmed | Reduction of Cracking and Shrinkage in Compressed Clay Beams during Drying |
| title_short | Reduction of Cracking and Shrinkage in Compressed Clay Beams during Drying |
| title_sort | reduction of cracking and shrinkage in compressed clay beams during drying |
| topic | Compressed Earth Blocks Affordable Houses Compaction Indigenous Clay Drying Shrinkage and Cracks |
| url | http://publications.muet.edu.pk/research_papers/pdf/pdf1367.pdf |
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