| Title |
Development of sustainable high-strength self-consolidating concrete utilising fly ash, shale ash and microsi / |
| Authors |
Ng, Pui Lam ; Rudžionis, Žymantas ; Ng, Ivan Yu-Ting ; Kwan, Albert Kwok-Hung |
| DOI |
10.5772/intechopen.75508 |
| ISBN |
9781789234022 |
| eISBN |
9781789234039 |
| Full Text |
|
| Is Part of |
Sustainable buildings: interaction between a holistic conceptual act and materials properties / edited by Amjad Almusaed.. London : IntechOpen, 2018. p. 113-130.. ISBN 9781789234022. eISBN 9781789234039 |
| Keywords [eng] |
embodied carbon ; embodied energy ; fly ash ; high-strength self-consolidating concrete ; microsilica ; shale ash ; supplementary binder materials ; sustainability |
| Abstract [eng] |
With high flowability and passing ability, self-consolidating concrete (SCC) does not require compaction during casting and can improve constructability. The favourable properties of SCC have enabled its widespread adoption in many parts of the world. However, there are two major issues associated with the SCC mixes commonly used in practice. First, the cement content is usually at the high side. Since the production of cement involves calcination at high temperature and is an energy-intensive process, the high cement content imparts high embodied energy and carbon footprint to the SCC mixes. Besides, the exothermic reaction of cement hydration would cause high heat generation and early thermal cracking problem that would impair structural integrity and necessitate repair. Second, the strength is usually limited to around grade 60, which is considered as medium strength in nowadays achievable norm. With a view to develop sustainable high-strength self-consolidating concrete (HS-SCC), experimental research utilising fly ash (FA), shale ash (SA), and microsilica (MS) in the production of SCC has been conducted, as reported herein. |
| Published |
London : IntechOpen, 2018 |
| Type |
Book part |
| Language |
English |
| Publication date |
2018 |
| CC license |
|
