Abstract: Three-dimensional (3D) printing is proposed as a potential solution in construction. Therefore, it is necessary to examine different properties of these concretes. On the other hand, air entrainment is a well-established ...

Abstract: The onsite wastewater treatment system (OWTS) with a sand trench is an economical option for residents in rural areas or the countryside where a centralized sewer system is inaccessible. The 2A sand achieves improved ...

Abstract: Due to the complex and dynamic atmosphere in the construction sector, different types of challenges are faced by project managers (PMs). These challenges potentially have negative impacts on the PM’s managerial performance, ...