To control disease, laboratories and providers are required to report conditions to public health authorities. Reporting logic is defined in a variety of resources, but there is no single resource available for reporters to access the list of reportable events and computable reporting logic for any jurisdiction. In order to develop evidence-based requirements for authoring such knowledge, we ev...

Chloride-induced corrosion has been one of the main causes reinforced concrete deterioration. One most used methods in assessing chloride penetration resistance is rapid migration test (RCMT). This an expeditious and simple method but may not be representative transport behaviour real environment. Other methods, like immersion (IT) wetting–drying tests (WDT), allow for a more accurate approach ...

this paper aims at investigating the influence of partial replacement of portland cement with ultrafine fillers compared to limestone powder on the durability and mechanical characteristics of concrete. for this purpose, ultrafine calcium carbonate materials with different specific surface areas of 9.7 and 15.1 m2/g and limestone powder (0.72 m2/g) were used. the results indicate that the ultra...

This paper aims at investigating the influence of partial replacement of Portland cement with ultrafine fillers compared to limestone powder on the durability and mechanical characteristics of concrete. For this purpose, ultrafine calcium carbonate materials with different specific surface areas of 9.7 and 15.1 m2/g and limestone powder (0.72 m2/g) were used. The results indicate that the ultra...

Abstract Coatings are used as practical solutions against the intrusion of corrosive ions into concrete structures, particularly, in harsh marine environment. In present study, effectiveness using cement-based and geopolymer-based coatings produced by-product materials has been evaluated. Silica fume GGBFS at their optimum dosages were incorporated mortar mixtures a cement replacement, NaOH or ...

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...