the present paper offers a meso-scale numerical model to investigate the effects of random distribution of aggregate particles and steel fibers on the elastic modulus of steel fiber reinforced concrete (sfrc). meso-scale model distinctively models coarse aggregate, cementitious mortar, and interfacial transition zone (itz) between aggregate, mortar, and steel fibers with their respective materi...

This study investigates the potential use of olive aggregates (OA) in production cementitious materials as a substitute for natural sand to reduce excessive this resource. Two types OA were used: OPA (olive pomace aggregates) and OPMW (OPA mixed with mill wastewater). The aim was determine experimentally whether improvements mechanical properties produced lightened cement mortar could be obtain...

Lightweight concrete (LWC) is used in the construction of partition and panel walls framed structures because it reduces dead load acting on structure. Rubberized lightweight aggregate made by using waste rubber tyre chips as a partial replacement coarse which increases ductility, toughness minimizes impact effect concrete. The presence content decreases compressive strength bond strength, affe...

There is a lot of ongoing active research all over the world looking for various applications used tyre rubber, to increase its utilisation rate. One common incorporate rubber into concrete as partial replacement conventional aggregates. However, due poor bonding performance with cement paste, in has been hindered date. A cost-effective and time-saving pre-treatment method great interest, espec...

Producing biochar by consuming biomass is an effective way to reduce the environmental impact from waste. This study investigates influence of made carya cathayensis peel waste, which a specific in Zhejiang province, China, on concrete basic mechanical properties. The was added into mixtures three different patterns, including: (1) additional filler at ratio 1%, 2%, 3%, 4% and 5% cement weight,...

The use of construction waste for concrete is an effective way to reduce the environmental burden while improving sustainability materials. Nano-SiO2 (NS) has excellent volcanic ash activity, which can effectively improve strength concrete. In this study, synergistic effects NS and 30% recycled aggregate (RCA) on mass loss, compressive strength, ultrasonic sound velocity values microstructure R...

Abstract This study aims to investigate the hybrid effects of carbon nanotubes (CNTs) and steel fiber (SF) on dynamic mechanical behavior ultra-high performance concrete (UHPC) under high-speed loading effects. The functionalized CNTs content varied from 0.0% 0.20%, SF volume was added 0.5% 2.0%. UHPC specimens were tested at strain rates ranging about 60 s-1 240 using split Hopkinson pressure ...

Basalt fiber (BF) is an environmentally friendly type of that has attracted the attention researchers in recent years due to its excellent performance concrete constructions. This current research was conducted investigate effect chopped basalt on workability, compressive strength, and impact resistance high-performance (HPC). Three various lengths (3, 12, 18 mm) six volume fractions (0%, 0.075...

Lightweight alkali-activated concrete (LAAC) is a type of highly environmentally friendly concrete, which can provide the benefits both material and lightweight concrete. The study aimed to investigate influence different water/solid (W/S) ratios on properties normal-weight/lightweight fly ash–slag manufactured at ambient temperature. relative performance (AAC) mixes with limestone sintered ash...