Chaitali B Guledagudd,
Dr. Kannam Praveen,
Akshath Gowda,
Pooja L J,
Kavana T,
- Research Scholar, School of Civil Engineering, REVA University, Rukmini Knowledge Park, Kattigenahalli Yelahanka, Bangalore, India
- Associate Professor, School of Civil Engineering, REVA University, Rukmini Knowledge Park, Kattigenahalli Yelahanka, Bangalore, India
- PG Student, School of Civil Engineering, REVA University, Rukmini Knowledge Park, Kattigenahalli Yelahanka, Bangalore, India
- PG Student, School of Civil Engineering, REVA University, Rukmini Knowledge Park, Kattigenahalli Yelahanka, Bangalore, India
- PG Student, School of Civil Engineering, REVA University, Rukmini Knowledge Park, Kattigenahalli Yelahanka, Bangalore, India
Abstract
Lightweight concrete (LWC) is a pioneering solution in the construction sector, characterized by its unique composition and versatile applications. Engineered with lightweight aggregates and additives, LWC achieves a significant reduction in dry density compared to conventional concrete, making it 23% to 87% lighter, with densities ranging from 300 to 1,840 kg/m³. This reduced weight makes LWC ideal for projects requiring load minimization, such as high-rise buildings and prefabricated elements. A good aggregate is crucial for optimal properties in both fresh and hardened concrete. Pumice stone, a volcanic rock, is often chosen as a replacement for coarse aggregate. Its natural lightness, due to gas escaping from molten lava, makes pumice a strong yet lightweight material suitable for LWC. Additionally, its porous nature can improve the thermal insulation properties of concrete, making buildings more energy-efficient. This investigation focuses on using pumice lightweight aggregate as a partial substitute for aggregates in LWC production, advancing lightweight construction methods. In this study, identification of optimal dosage of pumice lightweight aggregate in concrete was undergone depending on the 28days compressive strength. Lightweight aggregate concrete for M30 and M50 grades, with pumice incorporated at 20%, 40%, and 60% replacement levels of coarse aggregate was done to fix the optimal pumice dosage. Also, split tensile strength of cylindrical specimens and flexural test of prism specimens for obtaining optimal dosage was carried out. The properties such as compressive strength, split tensile strength and modulus of rupture were studied. Overall, the pumice aggregate showed good characteristic for replacing normal coarse aggregate for producing structural lightweight aggregate concrete.
Keywords: Lightweight concrete, pumice coarse aggregate, compressive strength, split tensile strength, modulus of rupture
[This article belongs to International Journal of Mineral (ijmi)]
Chaitali B Guledagudd, Dr. Kannam Praveen, Akshath Gowda, Pooja L J, Kavana T. Optimal Dosage of Pumice in Lightweight Aggregate based Concrete. International Journal of Mineral. 2024; 01(01):23-32.
Chaitali B Guledagudd, Dr. Kannam Praveen, Akshath Gowda, Pooja L J, Kavana T. Optimal Dosage of Pumice in Lightweight Aggregate based Concrete. International Journal of Mineral. 2024; 01(01):23-32. Available from: https://journals.stmjournals.com/ijmi/article=2024/view=171923
References
- Harun Tanyildizi, “Prediction of the Strength Properties of Carbon Fiber-Reinforced Lightweight Concrete Exposed to the High Temperature Using Artificial Neural Network and Support Vector Machine”, Hindawi, Advances in Civil Engineering, Article ID 5140610, 10 pages, 2018.
- Tamara Amer Mohammed and Hayder Mohammed Kadhim, “Sustainable High-Strength Lightweight Concrete with Pumice Stone and Sugar Molasses”, De Gruyter, Journal of the Mechanical Behavior of Materials, 32, 2023, https://doi.org/10.1515/jmbm-2022–0231
- Hailong Wang, et al., “Durability Improvement of Pumice Lightweight Aggregate Concrete by Incorporating Modified Rubber Powder with Sodium Silicate”, MDPI, Materials, 17, 786, 2024, https://doi.org/10.3390/ma17040786
- Muthanna Abbu, et al., “The Mechanical Properties of Lightweight (Volcanic Pumice) Concrete Containing Fibers with Exposure to High Temperatures”, De Gruyter, Journal of the Mechanical Behavior of Materials, 32, 2023, https://doi.org/10.1515/jmbm-2022–0249
- R S Muralitharan and V Ramasamy, “Basic Properties of Pumice Aggregate”, Cafet-Innova Technical Society, International Journal of Earth Sciences and Engineering, Volume 8, P.P.256–258, 2015.
- N Sivalingarao and N Manju, “A Brief Study on Mechanical Properties of Silica Fume Light Weight Aggregate (Pumice) Concrete”, IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), International Conference on Recent Innovations in Civil & Mechanical Engineering, PP 66–71, 2016.
- B. Karthika, et al., “Experimental Study on Lightweight Concrete Using Pumice Aggregate”, Elsevier, Materials Today Proceedings, Volume 43, Part 2, Pages 1606–1613, 2021
- Harish Kumar and Dr. P. Polu Raju, “Comparative Study on Flexural Behaviour of Lightweight Aggregate RC Beams”, IAEME Publication, International Journal of Civil Engineering and Technology (IJCIET), Volume 8, Issue 4, April 2017, pp. 1546–1561
- Syahrul, et al., “Flexural Behavior of Normal and Lightweight Concrete Composite Beams”, Civil Engineering Journal, Vol. 7, No. 03, March, 2021
- IS: 12269-2013, Indian Standard Ordinary Portland Cement, 53 Grade – Specification. Bureau of Indian Standards, New Delhi, 2013.
- IS: 383–1970 (Reaffirmed 2002), Indian Standard Specification for Coarse and Fine Aggregates from Natural Sources for Concrete. Bureau of Indian Standards, New Delhi, 2002.
- ASTM C494/C494M-13, Standard specification for chemical admixtures for concrete. ASTM International, West Conshohocken, PA, USA, 2001.
- IS 10262 : 2019, Concrete Mix Proportioning — Guidelines, Bureau of Indian Standards, New Delhi, 2019.
| Volume | 01 |
| Issue | 01 |
| Received | July 22, 2024 |
| Accepted | August 1, 2024 |
| Published | September 13, 2024 |