The Effects of Additives to Lightweight Aggregate on the Mechanical Properties of Structural Lightweight Aggregate Concrete
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Department of Civil Engineering, College of Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
Department of Civil Engineering, Ramsar Branch, Islamic Azad University, Ramsar, Iran
Online publication date: 2021-03-30
Publication date: 2021-03-01
Civil and Environmental Engineering Reports 2021;31(1):139–160
In the paper, the effects of different percentages of additives (perlite, LECA, pumice) on the mechanical properties of structural lightweight aggregate concrete were tested and evaluated. For the research, 14 mixing designs with different amounts of aggregate, water, and cement were made. Experimental results showed that the specific gravity of lightweight structural concrete made from a mixture of LECA, pumice, and perlite aggregates could be 25-30% lighter than conventional concrete. Lightweight structural concrete with a standard specific gravity can be achieved by using a combination of light LECA with perlite lightweight aggregates (LA) and pumice with perlite in concrete. The results indicated that LECA lightweight aggregates show more effective behavior in the concrete sample. Also, the amount of cement had a direct effect on increasing the strength regardless of the composition of LAs. The amount of cement causes compressive strength to increase. Furthermore, the stability of different experimental models increased from 156 to 345 kg m3 while increasing the amount of cement from 300 to 400 kg m3 in the mixing designs of LECA and perlite for W/C ratios of 0.3, 0.35, and 0.4. For a fixed amount of cement equal to 300 kg, the compressive strength is reduced by 4% by changing the water to cement ratio from 0.5 to 0.4. The compression ratios of strength for 7 to 28 days obtained in this study for lightweight concrete were between 0.67-0.8. Based on the rate of tensile strength to compressive strength of ordinary concretes, which is approximately 10, this ratio is about 13.5 to-17.8 in selected and optimal lightweight concretes in this research, which can be considered good indirect tensile strength for structural lightweight concretes.
ACI Committee 211 1998. Standard practice for selecting proportions for structural lightweight concrete (ACI 211.2-98). American Concrete Institute.
American concrete institute 2006. ACI committee 318, building code requirements for structural concrete (ACI 318 M-99).
ASTM C330 2009. Standard Specification for Lightweight Aggregates for Structural Concrete. Annual book of ASTM standards, ASTM, West Conshohocken, Pennsylvania.
Aydın, S and Baradan, B 2007. Effect of pumice and fly ash incorporation on high temperature resistance of cement-based mortars. Cement and Concrete Research 37(6), 988-995.
Bogas, JA and Gomes, T 2015. Mechanical and durability behaviour of structural lightweight concrete produced with volcanic scoria. Arabian Journal for Science and Engineering 40(3), 705-717.
Bogas, JA, Gomes, MG and Gomes, A 2013. Compressive strength evaluation of structural lightweight concrete by non-destructive ultrasonic pulse velocity method. Ultrasonics 53(5), 962-972.
Huang, X, Ranade, R, Zhang, Q, Ni, W and Li, VC 2013. Mechanical and thermal properties of green lightweight engineered cementitious composites. Construction and Building Materials 48, 954-960.
Iranian Concrete Institute,.(2005). Guidelines for Concrete Code of Iran (ABA).
Khaloo, AR 1994. Properties of concrete using crushed clinker brick as coarse aggregate. Materials Journal 91(4), 401-407.
Khaloo, AR, Dehestani, M and Rahmatabadi, P 2008. Mechanical properties of concrete containing a high volume of tire–rubber particles. Waste management 28(12), 2472-2482.
Shafigh, P, Jumaat, MZ, Mahmud, H and Hamid, NAA 2012. Lightweight concrete made from crushed oil palm shell: tensile strength and effect of initial curing on compressive strength. Construct Build Materials 27, 252–258.
Zaetang, Y, Wongsa, A, Sata, V and Chindaprasirt, P 2013. Use of lightweight aggregates in pervious concrete. Construction and Building Materials 48, 585-591.
Nguyen, LH, Beaucour, AL, Ortola, S and Noumowé, A 2014. Influence of the volume fraction and the nature of fine lightweight aggregates on the thermal and mechanical properties of structural concrete. Construction and building materials 51, 121-132.
Salim, S 2020. Fracture and Permeability Properties of Artificial Fly Ash and Slag aggregate Concretes at Different Water-to-Cement Ratios. Journal of Material Science and Technology Research 7, 11-29.
Yu, QL, Spiesz, P and Brouwers, HJH 2015. Ultra-lightweight concrete: conceptual design and performance evaluation. Cement and Concrete Composites 61, 18-28.
Shafigh, P, Chai, LJ, Mahmud, HB and Nomeli, MA 2018. A comparison study of the fresh and hardened properties of normal weight and lightweight aggregate concretes. Journal of building Engineering 15, 252-260.
Wongkvanklom, A, Posi, P, Khotsopha, B, Ketmala, C, Pluemsud, N, Lertnimoolchai, S and Chindaprasirt, P 2018. Structural lightweight concrete containing recycled lightweight concrete aggregate. KSCE Journal of Civil Engineering 22(8), 3077-3084.
Aghamohammadzadeh, F, Afshin, H and Nekooei, M 2019. Experimental Evaluation of Relationship between Shear Deformation and Pinching in Lightweight-aggregate Reinforced Concrete Beams. KSCE Journal of Civil Engineering 23(1), 173-179.
Bogas, JA, Carriço, A and Pontes, J 2019. Influence of cracking on the capillary absorption and carbonation of structural lightweight aggregate concrete. Cement and Concrete Composites 104, 103382.
Tajra, F, Abd Elrahman, M, Lehmann, C AND Stephan, D 2019. Properties of lightweight concrete made with core-shell structured lightweight aggregate. Construction and Building Materials 205, 39-51.
Demirel, B, Gultekin, E AND Alyamac, KE 2019. Performance of Structural Lightweight Concrete containing Metakaolin after Elevated Temperature. KSCE Journal of Civil Engineering 23(7), 2997-3004.
Regin, JJ, Vincent, P, Shiny, DS AND Porcia, L March 2019. Neural Network Prediction of Compressive Strength of Lightweight Coconut Shell Concrete. In 2019 International Conference on Recent Advances in Energy-efficient Computing and Communication (ICRAECC). IEEE. 1-7.
Yu, QL, Glas, DJ and Brouwers, HJH 2020. Effects of Hydrophobic Expanded Silicate Aggregates on Properties of Structural Lightweight Aggregate Concrete. Journal of Materials in Civil Engineering 32(6), 06020006.
Ibrahim, M, Ahmad, A, Barry, MS, Alhems, LM and Suhoothi, AM 2020. Durability of Structural Lightweight Concrete Containing Expanded Perlite Aggregate. International Journal of Concrete Structures and Materials 14(1), 1-15.
Sikora, P, Rucinska, T, Stephan, D, Chung, SY and Abd Elrahman, M 2020. Evaluating the effects of nanosilica on the material properties of lightweight and ultra-lightweight concrete using image-based approaches. Construction and Building Materials 264, 120241.
Kalpana, M and Tayu, A 2020. Experimental investigation on lightweight concrete added with industrial waste (steel waste). Materials Today: Proceedings 22, 887-889.
Shariati, M, Mafipour, MS, Mehrabi, P, Ahmadi, M, Wakil, K, Trung, NT and Toghroli, A 2020. Prediction of concrete strength in presence of furnace slag and fly ash using Hybrid ANN-GA (Artificial Neural Network-Genetic Algorithm). Smart Structures and Systems 25(2), 183-195.
Oghabi, M, Khoshvatan, M 2020. The Laboratory Experiment of the Effect of Quantity and Length of Plastic Fiber on Compressive Strength and Tensile Resistance of Self-Compacting Concrete, KSCE Journal of Civil Engineering 24(8), 2477-2484.
Yang, KH 2021. Shear friction response of lightweight concrete using bottom ash aggregates and air foams. Journal of Structural Integrity and Maintenance 6(1), 37-46.
Natalli, JF, Xavier, EM, Costa, LCB, Rodrigues, BH, Sarmanho, AMC and Peixoto, RAF 2021. New methodology to analyze the steel–concrete bond in CFST filled with lightweight and conventional concrete. Materials and Structures 54(1), 1-12.