Mix design and characteristics evaluation of high-performance concrete incorporating silica fume and fly ash using modified andreason & andersen particle packing model | |
| Author | Karna, Binay |
| Call Number | AIT Thesis no.ST-21-08 |
| Subject(s) | High strength concrete Compacting Concrete--Mixing |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-21-08 |
| Abstract | Concrete is the most dominant construction material because of its heterogeneous properties. Nowadays the construction industry is grooming very fast increasing the need for high-performance concrete, which has high mechanical and durability properties. Cement, which is the most important ingredient of concrete mix, is also responsible for large CO2 emissions. Sustainability is a great challenge for the concrete industry because of this. So, it is very important to find a way to address the need of high-performance concrete along with minimization of cement content. So, for this particle packing approach along with partial replacement of cement with SCMs is the major objective of this study. “In this study, mix designs have been developed using Design of Experiment (DOE) for the Modified Andersen & Andreasen particle packing model and the results are compared with ACI control mixes. The comparison for strength and durability is done by six tests i.e. Slump, Compressive strength, Rapid Chloride Penetration, Abrasion Resistance, Absorption & Ultrasonic Pulse Velocity Test. The conclusions have been developed by 28-day & 56-day results for each test. The results have been used to develop prediction models in Response Surface Methodology(RSM) and Artificial Neural Network(ANN). Sustainability analysis has also been carried out in terms of CO2 emissions per MPa to compare the PPM model with the conventional ACI mix. A High-performance concrete mix was developed with binder content as low as 195 kg/m3 using M A&A PPM approach. And, the prediction model was developed with both RSM & ANN, for which ANN showed better predictability. PPM mixes resulted in a 33-48% decrease in CO2 emissions compared to ACI and the cost of the mix per cubic meter was less than 2000 Baht.” It can be concluded that low-cement high-performance concrete with partial substitutiont of cement by SCMs can be designed using the PPM approach. This will contribute to the minimization of carbon emissions along with the minimization of the cost of concrete as well. The prediction model presented in this study can be used to select mix designs based on the performance and cost of concrete. |
| Year | 2021 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-21-08 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai;Thanakorn Pheeraphan (Co-Chairperson); |
| Examination Committee(s) | Punchet Thammarak;Anwar, Naveed; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship;CSI Fellowship, Self Financing; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2021 |