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Agyekum, K, Adinyira, E, Baiden, B, Ampratwum, G and Duah, D (2019) Barriers to the adoption of green certification of buildings. Journal of Engineering, Design and Technology , 17(05), 1035–55.

Al-Saeed, Y, Parn, E, Edwards, D J and Scaysbrook, S (2019) A conceptual framework for utilising BIM digital objects (BDO) in manufacturing design and production. Journal of Engineering, Design and Technology , 17(05), 960–84.

Gamil, Y and Rahman, I A R (2019) Awareness and challenges of building information modelling (BIM) implementation in the Yemen construction industry. Journal of Engineering, Design and Technology , 17(05), 1077–84.

He, W, Shi, Y and Kong, D (2019) Construction of a 5D duration and cost optimisation model based on genetic algorithm and BIM. Journal of Engineering, Design and Technology , 17(05), 929–42.

Hussin, M H, Othman, N H and Wan Ibrahim, M H (2019) Carbonation of concrete containing mussel (Perna viridis) shell ash. Journal of Engineering, Design and Technology , 17(05), 904–28.

• Type: Journal Article
• Keywords: Calcareous replacement; Concrete carbonation; Mussel shell ash ({[}Perna viridis{]}); Ordinary Portland cement;
• ISBN/ISSN: 1726-0531
• URL: https://doi.org/10.1108/JEDT-12-2018-0228
• Abstract:
  This paper aims to investigate the use of calcined mussel shell (CMS) ash–cement mix in concrete that is found to increase the concrete resistance against carbonation. The deposited ash from the calcination of the mussel shells at 1000°C was used to replace the ordinary Portland cement at 5 and 7 per cent of the cement weight. The test results from the control concrete specimens were compared to the test results from the experimental concrete specimens to analyse the effects due to the said replacements. Carbonation was carried out naturally in the environment where the concentration of the carbon dioxide gas was at 0.03 per cent, the relative humidity of 65 per cent and the temperature of 27°C for a maximum period of 120 days. Measurement of carbonation depth was taken in accordance to the BS EN 13295: 2004. The carbonation resistance of the concrete was assessed based on the degree of compliance with the common design life requirement of 50 years. The filler effect from the CMS was verified using the capillary absorption test (ASTM C1585: 2013) and the electron microscope. Experimental concrete specimens containing 5 and 7 per cent of the CMS ash demonstrated better carbonation resistance compared to the control concrete specimens with a minimum attainable design life of 56 years which can reach a maximum of 62 years. Capillary absorption test results indicated that the concrete pores have been effected by the said filler effect and visual observation from the electron microscope confirmed, solidifying the statement. The CMS ash is proven to contribute to the concrete’s resistance against carbonation. Also, the CMS ash is synthesized from waste materials which have contributed to the application of the green material in the concrete technology.

Koranteng, C, Simons, B and Essel, C (2019) Climate responsive buildings: a comfort assessment of buildings on KNUST campus, Kumasi. Journal of Engineering, Design and Technology , 17(05), 862–77.

Okojie, D E, Jimoh, A A, Hamam, Y and Yusuff, A A (2019) Optimal capacity utilisation of transmission lines network in power flow operations: a survey. Journal of Engineering, Design and Technology , 17(05), 1056–76.

Owusu-Manu, D, Asiedu, R O, Edwards, D J, Donkor-Hyiaman, K, Abuntori, P A and El-Gohary, H (2019) An assessment of mortgage loan default propensity in Ghana. Journal of Engineering, Design and Technology , 17(05), 985–1017.

Pornthepkasemsant, P and Charoenpornpattana, S (2019) Identification of factors affecting productivity in Thailand’s construction industry and proposed maturity model for improvement of the productivity. Journal of Engineering, Design and Technology , 17(05), 849–61.

Rajabion, L, Wakil, K, Badfar, A, Mojtabavi Naeini, S and Zareie, B (2019) A new model for assessing the impact of ICT and digital knowledge on students’ thoughts and beliefs. Journal of Engineering, Design and Technology , 17(05), 943–59.

Santhosh, C (2019) Impact of determinants on early internationalization. Journal of Engineering, Design and Technology , 17(05), 1018–34.

Thanaraj, D P, N., A and Arulraj, P (2019) Experimental investigation of mechanical properties and physical characteristics of concrete under standard fire exposure. Journal of Engineering, Design and Technology , 17(05), 878–903.