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Arshad, M F, Thaheem, M J, Nasir, A R and Malik, M S A (2019) Contractual Risks of Building Information Modeling: Toward a Standardized Legal Framework for Design-Bid-Build Projects. Journal of Construction Engineering and Management, 145(04).

Baek, M and Ashuri, B (2019) Analysis of the Variability of Submitted Unit Price Bids for Asphalt Line Items in Highway Projects. Journal of Construction Engineering and Management, 145(04).

Chao, L and Liaw, S (2019) Fuzzy Logic Model for Determining Minimum Overheads-Cum-Markup Rate. Journal of Construction Engineering and Management, 145(04).

Deng, Y, Gan, V J L, Das, M, Cheng, J C P and Anumba, C (2019) Integrating 4D BIM and GIS for Construction Supply Chain Management. Journal of Construction Engineering and Management, 145(04).

Hacker, M E, Kaminsky, J and Faust, K M (2019) Legitimizing Involvement in Emergency Accommodations: Water and Wastewater Utility Perspectives. Journal of Construction Engineering and Management, 145(04).

Jin, R and Chen, Q (2019) Overview of Concrete Recycling Legislation and Practice in the United States. Journal of Construction Engineering and Management, 145(04).

Kereri, J O and Harper, C M (2019) Social Networks and Construction Teams: Literature Review. Journal of Construction Engineering and Management, 145(04).

Kim, J, Ham, Y, Chung, Y and Chi, S (2019) Systematic Camera Placement Framework for Operation-Level Visual Monitoring on Construction Jobsites. Journal of Construction Engineering and Management, 145(04).

Li, H, Wang, M and Dong, X (2019) Resource Leveling in Projects with Stochastic Minimum Time Lags. Journal of Construction Engineering and Management, 145(04).

Li, Y, Li, G, Wang, T, Zhu, Y and Li, X (2019) Semicustomized Design Framework of Container Accommodation for Migrant Construction Workers. Journal of Construction Engineering and Management, 145(04).

Mitikie, B B and Lee, T S (2019) Experimental Investigation of Enzyme Stabilization and Its Effect on Clay Brick. Journal of Construction Engineering and Management, 145(04).

  • Type: Journal Article
  • Keywords: Enzyme brick; Strength; Water absorption; Water diffusivity; Cross-linking;
  • ISBN/ISSN: 0733-9364
  • URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0001609
  • Abstract:
    In this paper, compressive strength, water absorption, diffusivity capacity, pore area, and the role of the enzyme on clay soil brick were verified. The higher compressive strength at enzyme:water ratios of 1∶150, 1∶250, and 1∶350 was greater than 7 MPa, and lower water absorption at the same state was less than 16%. These values satisfied ordinary clay brick standards, which are a minimum strength of 7 MPa and a maximum limit of 20% water absorption. The enzyme concentration affected the pore area of the brick samples. Based on ImageJ analysis, the pore area of enzyme clay brick decreased when the enzyme concentration increased. The cross-linking matrix bond and the early stage of ettringitelike structure formations are the effects of enzyme on clay soil as observed by a scan electron microscope (SEM) using Matlab image processing. These structures are important for the strength and immobilization properties of enzymes in clay soil. Enzyme brick could be applicable mainly in developing countries to provide affordable housing.

Nasirian, A, Arashpour, M, Abbasi, B and Akbarnezhad, A (2019) Optimal Work Assignment to Multiskilled Resources in Prefabricated Construction. Journal of Construction Engineering and Management, 145(04).

Noorizadeh, A, Peltokorpi, A and Avkiran, N K (2019) Supplier Performance Evaluation in Construction Projects: Challenges and Possible Solutions. Journal of Construction Engineering and Management, 145(04).

O’Connor, J T and Mock, B D (2019) Construction, Commissioning, and Startup Execution: Problematic Activities on Capital Projects. Journal of Construction Engineering and Management, 145(04).

Oswald, D, Wade, F, Sherratt, F and Smith, S D (2019) Communicating Health and Safety on a Multinational Construction Project: Challenges and Strategies. Journal of Construction Engineering and Management, 145(04).

Son, J, Khwaja, N and Milligan, D S (2019) Planning-Phase Estimation of Construction Time for a Large Portfolio of Highway Projects. Journal of Construction Engineering and Management, 145(04).

Wu, L, Jia, G and Mackhaphonh, N (2019) Case Study on Improving the Effectiveness of Public Participation in Public Infrastructure Megaprojects. Journal of Construction Engineering and Management, 145(04).

Xiong, B, Skitmore, M, Xia, P, Ballesteros-Pérez, P, Ye, K and Zhang, X (2019) Impact of Corporate Credit Scoring on Construction Contractors in China. Journal of Construction Engineering and Management, 145(04).