For rehabilitation of damaged concrete structures, the durability of repair overlay is a very important issue. Self-compacting concretes (SCC) are known as a suitable repair overlay materials. In this study, the durability of different self-compacting lightweight aggregate concretes (LWSCC) and effect of lightweight aggregate type on them is investigated. 3 mix designs of LWSCC containing three...

In this research, the effect of the cement, sand, and pumice mixture on the durability of lightweight concrete is investigated. The intention of this paper is to replace a certain amount of the pumice percentage as an alternative option of the cement and pumice sand aggregate with conventional sand components. The experimental results include compressive strength, ion-chloride emission factor (...

Self-Compacting Concrete (SCC) is a special concrete that can flow easily across congested reinforcements. Also, it easy to work with and does not segregate. The present investigation aims at the design development of sustainable SCC employment industrial by-products such as Fly Ash (FA), Ground Granulated Blast Furnace Slag (GGBFS), Expanded Perlite Aggregate (EPA). Four mixes were developed a...

In MC-CDMA, each user’s data-modulated symbol to be transmitted is spread over a number of subcarriers using an orthogonal spreading sequence defined in the frequency-domain. As the spreading factor SF becomes larger, the transmission performance improves due to increasing frequency diversity effect; however, the data rate per user decreases. The SF=1 system corresponds to an OFDM system. In an...

Abstract The world today has started facing bigger problems related to the concrete industry, especially with becoming most extensively used construction material in world. At a time like this, where more eco-friendly substitutions are stringent, it calls for comprehensive approach producing recycled from aggregates (RCA). This study is an extension previous studies involving composite utilizat...

In the last decade, nanomaterials made a major breakthrough in concrete industry by providing with unique properties. Earlier studies have shown improvement early strength of that can accelerate construction process. this study, 1% and 2% nano-silica were added to mixtures contain 30% 70% ground granulated blast-furnace slag (GGBS). Adding GGBS mixture showed an increase compressive 13.5%, 7.8%...

This paper investigates mortars consisting of various circulating fluidized bed combustion (CFBC) bed ash contents. The CFBC bed ash used in this study was obtained from Taiwan’s petroleum industry. This study presents experimental results on the flowability, compressive strength, drying shrinkage, scanning electronic microscopy (SEM) and mercury intrusion porosimetry (MIP) of mortar samples co...

Experiments have been carried out to establish the relative position of the mouse Ig heavy chain locus and the c-myc oncogene. In mouse plasmacytoma with the typical rcpt(12;15) chromosome translocation the c-myc oncogene is juxtaposed to one of the heavy chain genes in a head-to-head orientation. Since the relative orientations of the c-myc locus and the Ig heavy chain gene cluster on the corr...

The cement industry is expanding rapidly around the globe, despite its significant contribution to global carbon dioxide emissions. Likewise, in Pakistan, produces million tons of and has a history contributing as high 10% country’s emissions annually. most effective technique for reducing use supplementary cementitious materials (SCMs). Limestone Calcined Clay Cement (LC3-50) recently develope...

This work aims to show the advantages of using GGBS (Ground Granulated Blast Furnace Slag) and ACBFS aggregate (Air-Cooled on tensile strength durability properties infrastructure concrete at reference age 28 days. Three mixes were prepared: first one was a control sample; second had 15% (instead Portland cement) 25% natural sand); third 50% sand). The studies mortars focused ratio compressive ...