Published in Journal of Construction Research
Through the systematic analysis of the ground settlement generatedby the process of shield tunneling, the relationships between grounddeformation and construction parameters are studied in this paper. Basedon the assumption of linear small deformation, a mathematical model ofthe relationship between ground deformation and construction parametersis ...
Published in Journal of Construction Research
Earlier research works on fire risk evaluation indicated that an objective,reliable, comprehensive, and practical fire risk evaluation model is essentialfor mitigating fire occurrence in building construction sites. Nevertheless,real empirical studies in this research area are quite limited. This journalpaper gives an account of the second stage of...
Published in Journal of Building Material Science
An evaluation of the effects of additives and firing temperatures on clay bricks characteristics was studied. The two (2) additives used were sawdust ash (SDA) and iron ore tailing wastes (IOTW), and the five (5) firing temperatures of 400o C to 1200o C at intervals of 200o C were applied. The fired bricks were tested for linear shrinkage, water ab...
Published in Journal of Building Material Science
Energy consumed by buildings accounts for approximately one-third of the total energy consumption of the society. Moreover, energy systems employed in buildings emit hazardous pollutants, such as, NOx, PM2.5 and CO2, into the environment. Consequently, increasing the energy efficiency of buildings constitutes an important problem concerning the fie...
Published in Journal of Construction Research
Concrete is the most generally used construction material in buildings,pavements, and infrastructures. Concrete is a construction materialcomposed of cement as binder, fine aggregates and coarse aggregatesmixed with water which hardens with time. Concrete is a versatileconstruction material within the housing industry of the planet. Thestandard of ...
Published in Journal of Building Material Science
The manufacturing of ordinary Portland cement is an energy-intensive process that results in pollution and CO2 emissions, among other issues. There is a need for an environmentally friendly green concrete substitute. Waste products from a variety of sectors can be recycled and used as a green concrete substitute. This decreases the environmental ef...
Published in Journal of Building Material Science
The evaluation of the effect of using moringa oleifera seed powder (MOSP) to partially replace cement by wt. % has been carried out. A mix parameter of 1: 1.7: 2.5, with designed strength of 20 kN-m2 , and a cement content of 420 kg-m3 , water-cementitious ratio of 0.5, to produce concrete specimens to which percentages of MOSP by wt. % of cement w...
Published in Journal of Building Material Science
This paper focuses on methodological issues relevant to corrosion risk prediction models. A model was developed for the prediction of corrosion rates associated with hot-dip galvanised reinforcement bar material in concrete exposed to carbonation and chlorides in outdoor environment. One-year follow-up experiments, over five years, were conducted a...
Published in Journal of Construction Research
On-time completion of road infrastructure projects is a critical goal. Whenprojects were not completed on schedule and real construction progress isslower than expected, the inconvenience and disruption to business accessincreases. On time completion is linked to economic and social welfare,as well as safety. Construction delays continue to be a ty...
Published in Journal of Building Material Science
Concrete is one of the most important building material and day by day theutilization of concrete is increasing to meet the infrastructure developmentrequirement. On one hand it is unavoidable but some alternative to beexplored to reduce the global environmental impact caused by the concrete.To overcome this from the last decade the world is lookin...
