The article discusses the technology of production refractory concrete products using a 3D-printer

Three-dimensional (3D) Printing is an advanced manufacturing process that has been applied to many fields. Recently, the 3D Concrete (3DCP) employed for construction due its ability produce complex shapes easily, with less human intervention and minimum material wastage. However, there are challenging issues regarding cost of components concrete mixture which not fully explored. The aim this pa...

A modern lifestyle, alongside the advancement of technology has led to an increase in the amount and type of waste being generated, leading to a waste disposal crisis. This study tackles the problem of the waste that is generated from construction fields, such as demolished concrete, glass, and plastic. In order to dispose of or at least reduce the accumulation of certain kinds of waste, it has...

Post-consumer glass represents a major component of solid waste. On the other hand, more than 100 million tons of coal combustion ash are generated in the U.S. annually, of which 60 million tons are fly ash. To deal with these problems, two new materials were developed: “glascrete” and “ashcrete.” They have the potential of being made almost entirely from recycled materials: crushed mix-color w...

This paper reports on the key features of the “Guide for the Design and Construction of Concrete Reinforced with FRP Bars” issued by the American Concrete Institute (ACI). For new construction, FRP bars have been used as the internal reinforcement in concrete members to replace conventional steel rebars for a host of reasons. The principles for design and construction were first established and...

This paper presents the experimental results of utilizing Electro-Osmotic Pulsing Technology to reduce the diffusion of radon soil gas through a concrete slab. A laboratory system with state-of-theart instrumentation has been used to measure the diffusion coefficient of radon soil gas through 30.5 cm diameter, 10.2 cm thick standard composition concrete samples (w/c = 0.5 and cement:sand:gravel...

Current concrete technology has made higher concrete grades more affordable to mid and high-rise buildings; hence its use has been increasing in the late years as it allows for smaller cross-sections, reduction of the structure’s weight, improve durability, among other benefits. However, it is known that brittleness of plain concrete increases with the strength; therefore, some national codes h...