Materials
Mechanism of Chloride Ion Adsorption in Cement Hydrates as per Time-Dependent Behavior
Author(s) In-Seok Yoon and Tatsuhiko Saeki Abstract The purpose of this study was to explore the mechanism of the interaction between cement hydrates and chloride ions by examining the time-dependent behavior of chloride ion adsorption. The CH and AFt phases...
Steel Corrosion in Calcium Aluminate Cement Mortar against Chloride
Author(s) Ki Yong Ann, Hee Jun Yang, Hansol Kim, Jiseok Kim, Won Jung Cho, and Ho Seop Jung Abstract Three different types of calcium aluminate cement (CAC) were investigated about their resistance to chloride-induced corrosion of steel. CAC imposed higher...
Use of Electrical Resistivity-Based Tests for Concrete Penetrability Measurement
Athor(s) M. Almarshoud, H. Mosavi, R. Alrashidi, M. H. M. Alyami, C. C. Ferraro, H. D. DeFord, and K. A. Riding Abstract In this study, the concrete penetrability properties were measured for both the older test methods and the new resistivity-based test...
Healing with Polymer Containing Phosphazene of Concrete Exposed to Freezing and Thawing
Author(s) Harun Tanyildizi Abstract This work aims to decrease the damage in concrete caused by freezing-and-thawing. For this, concrete was healed using the polymer containing phosphazene after the freezing and thawing. The Taguchi method was used to decrease...
Development of Autonomous-Healing Mortar Using Geobacillus stearothermophilus
Author(s) Author(s): M. A. Raden Maizatul Aimi, M. S. Hamidah, K. Kartini, H. Noor Hana, A. K. Khalilah, and E. Schlangen Abstract Autonomous healing by the microbially induced calcite precipitation (MICP) mechanism has garnered significant interest in the...
Formwork Pressure of a Heavyweight Self-Compacting Concrete Mix
Author(s) Michał A. Glinicki, Jacek Gołaszewski and Grzegorz Cygan Abstract High-fluidity and self-compacting concrete (SCC) mixes were developed using special aggregates for radiation-shielding concrete. The special aggregates comprised heavyweight and hydrous...
Novel Analytical Method for Mix Design and Performance Prediction of High Calcium Fly Ash Geopolymer Concrete
Author(s) Chamila Gunasekara, Peter Atzarakis, Weena Lokuge, David W. Law and Sujeeva Setunge Abstract Despite extensive in-depth research into high calcium fly ash geopolymer concretes and a number of proposed methods to calculate the mix proportions, no...
Autogenous Self-Healing Capacity of Early-Age Ultra-High-Performance Fiber-Reinforced Concrete
Author(s) Estefania Cuenca and Pedro Serna Abstract This paper analyzes the autogenous self-healing capacity of early-age Ultra-High-Performance Fiber-Reinforced concretes (UHPFRCs) by measuring the crack closure and the possible mechanical recovery on healed...
Evaluation of the Mechanical Properties of Normal Concrete Containing Nano-MgO under Freeze–Thaw Conditions by Evolutionary Intelligence
Author(s) Mehdi Yazdchi, Ali Foroughi Asl, Siamak Talatahari, Amir H. Gandomi Abstract In this research, different amounts of nano-MgO were added to normal concrete samples, and the effect of these particles on the durability of the samples under freeze and...