Self-compacting concrete (SCC) is a high-performance widely used as building material. The present investigation examines the effects of age and cooling type (air-cooled water-cooled) SCC after being exposed to elevated temperatures compares them those normal conventional (NCC). Two types concrete; i.e., NCC SCC, were developed studied for early-age residual strengths. was with three different ...

The study compares the durability of Natural Zeolite with Metakaolin, Silica Fume, and Fly Ash on high-strength concrete. 300 concrete specimens were tested for compressive strength before after an acid attack, modulus elasticity, water absorption, rapid chloride permeability. 5%, 10%, 15% cement replaced cementitious elements while maintaining same quantity Zeolite. In this investigation, wate...

Concrete is an essential material in all constructions throughout the world. It has lot of uses our daily routine life. Every to deteriorate and damage due many factors same way concrete also deteriorates. The carbonation process identified as a main reason for corrosion reinforcement structure. mechanism which includes entrance carbon dioxide (CO2) into solid permeable framework shape situatio...

Kaolin and halloysite are aluminosilicate materials widely available in Cameroon. The present study aims at investigating the fresh hardened properties of consolidated metakaolin- meta-halloysite blends geopolymer binders cured room temperature (23 ± 3 °C). To produce geopolymers, metakaolin was used as main solid precursor replaced by up to 50 wt%. raw synthesized products were characterized u...

In this study, it is aimed to investigate the influence of rice husk ash, which a waste by-product industrial production, on ultrasonic pulse velocity, compressive strength, flexural strength and high temperature endurance metakaolin-based geopolymer mortar. For this, sand was substituted by ash (RHA) at rate 25%, 50% 75% wt. in production A total 4 series mortars (reference three with RHA subs...

To address the problem of chloride ion transport in cement concrete marine environment, this study investigates effect metakaolin dosage on diffusion resistance mortar and its mechanism by testing binding capacity microstructure under coupling chlorine salt-sulfate-carbonation multiple factors. The results show that sulfate or carbonation reduces to some extent compared with single salt attack,...

The current production of zeolites from natural sources requires high temperatures to achieve a phase change in the feedstock materials. Thermal processes such as calcination are energy-consuming and industry relies on fossil fuels generate necessary heat, which is neither sustainable nor environmental. This study presents for first time treatment aluminosilicate clay kaolin solar reactor produ...

As is generally known, the globe rapidly developing, and building construction plays a crucial role in this development. If we go into further detail, increased use of concrete results depletion natural resources. We considered substituting following measurements for part concrete's proportions order to conserve our To preserve resources like fine aggregate, are employing metakaolin as an addit...

The work presents the results of an experimental campaign carried out on concrete elements in order to investigate potential using artificial neural networks (ANNs) estimate compressive strength based relevant parameters, such as water–cement ratio, aggregate–cement age testing, and percentage cement/metakaolin ratios (5% 10%). We prepared 162 cylindrical specimens with dimensions 10 cm diamete...

The development of printers and materials for 3D Printing Construction during the last two decades has allowed construction increasingly complex projects. Some them have broken speed records due to simplification process, particularly in non-standard geometries. However, performance security reasons used had considerable amounts Portland cement (PC), a constituent that increases cost environmen...