| Author | Dissanayake, Balage Don Thisum Kalhara |
| Call Number | AIT Caps. Proj. no.CIE-14-17 |
| Subject(s) | Lightweight concrete
|
| Note | A capstone project report submitted in partial fulfillment of the requirements for the
degree of Bachelor of Science in Engineering in
Civil and Infrastructure Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Caps. Proj. ; no. CIE-14-17 |
| Abstract | Cellular lightweight concrete is a fast growing structural element in the construction industry in Thailand. However, CLC blocks have met with an occurrence of shrinkage cracks. An experimental approach was undertaken to determine the effects of early stage indoor curing on the long term performance of CLC in this study.
Drying shrinkage and compressive strength were investigated considering one mix proportion of CLC. Water cured durations were varied as 3,7,14 and 20 days. Subsequently specimen sets were stored in an indoor condition which had a 75% relative humidity and 25°C temperature until 28 days. The specimens were kept in outdoor afterwards. Free shrinkage until 70 days and 28 day compressive strength were recorded. Finally, results were compared with the simultaneous studies carried out on subsequent 68% RH and outdoor curing conditions.
It was discovered that indoor curing gives a better shrinkage performance than outdoor curing. Increasing initial water cured duration resulted in a better drying shrinkage performance. Irreversible shrinkage was observed in the earlier stage. Ambient environmental conditions caused the reversible shrinkage occurred in later stages. In the end, 20 day water curing and 68% RH is determined as the best curing method which resulted in lesser shrinkage and higher strength. |
| Year | 2014 |
| Corresponding Series Added Entry | Asian Institute of Technology. Caps. Proj. ; no. CIE-14-17 |
| Type | Capstone Project |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Civil and Infrastructure Engineering (CIE) |
| Chairperson(s) | Teraphan Ornthammarath; |
| Examination Committee(s) | Punchet Thammarak ;Kawin Worakanchana; |
| Degree | Capstone Project (B.Sc.)-Asian Institute of Technology, 2014 |