Abstract The current understanding of the carbonation and prediction rate alkali-activated concretes is complicated inter alia by wide range binder chemistries used testing conditions adopted. To overcome some limitations individual studies to identify general correlations between mix design parameters resistance, RILEM TC 281-CCC ‘Carbonation Concrete with Supplementary Cementitious Materials’...

BACKGROUND Americans spend the vast majority of their lives in built environments. Even traditionally outdoor pursuits, such as exercising, are often now performed indoors. Bacteria that colonize these indoor ecosystems are primarily derived from the human microbiome. The modes of human interaction with indoor surfaces and the physical conditions associated with each surface type determine the ...

Power simulation of digital circuits in early stages of development is a very popular topic amongst circuit designers. This paper discusses available power estimation techniques at the logic level. We elaborate on the fact that this technique can also be used to investigate an implementation’s DPA resistance with modest effort. Our practical investigations are based on an 8051-compatible contro...

We present an approach that integrates protein structure analysis and text mining for protein functional site prediction, called LEAP-FS (Literature Enhanced Automated Prediction of Functional Sites). The structure analysis was carried out using Dynamics Perturbation Analysis (DPA), which predicts functional sites at control points where interactions greatly perturb protein vibrations. The text...

High volume fly ash (HVFA) concretes are one component of creating a more sustainable infrastructure. By replacing 50 % or more of the Portland cement with fly ash, a significant reduction is achieved in the carbon footprint of the in place concrete. While HVFA mixtures can be proportioned to produce equivalent long term performance as conventional (cement-only) mixtures, performance problems a...

Durability of reinforced concrete with respect to corrosion of reinforcement is one of the major aspects to be considered in the management of civil infrastructure systems. An accelerated laboratory test method developed at SERC where the concrete specimen containing rebar is subjected to polarization under a constant voltage in a sodium chloride solution. It is found that the current response ...

Freeze–thaw resistance is a significant issue in the durability of concrete; however, it not widely discussed context limestone addition to concrete. The present study aims compare effect different types powder on frost ordinary and self-compacting Three were added concrete an amount 15% 30% cement weight. Compositions with without air-entraining admixture prepared each instance. Research inclu...

Conventional hot mix plants operate to support large paving projects, making production more economic with high volume output. When repairs and maintenance are needed, it can be challenging maintain small quantities of bituminous mixtures at a sufficient temperature, especially in the case winter maintenance. Consequently, repair materials cannot compacted desired level on some occasions. This ...

Abstract A main cause of biodiversity loss is artificialization the marine environment (IPBES 2019). With 39,400 km 2 coastal and areas already encroached upon by human infrastructure an increasing demand on space due to growing global population – projected reach 9 billion 2050 it clear that humanity needs find ways prevent its activities from endangering biodiversity. To this end, since 1990s...

This overview of durability in composite wood products will discuss the history and background of increasing the durability of wood composites. Some of the current challenges will be presented. Processing for durable composites will include post-manufacture treatments and in-process treatments. New composites and novel approaches and treatments for durability will be discussed.