Mortar elements form a family of special non-overlapping domain decomposition methods which allows the coupling of different triangulations across subdomain boundaries. We discuss and analyze a multilevel preconditioner for mortar finite elements on nonmatching triangulations. The analysis is carried out within the abstract framework of additive Schwarz methods. Numerical results show a perform...

Several studies have investigated the properties of alkali-activated materials (AAM), considering it as a substitute cementitious concrete. However, on self-consolidating concrete (AASCC) are extremely limited. This paper AASCCs utilizing ground granulated blast furnace slag (GGBFS) main precursor. Single, binary, and ternary were produced using fly ash Class-F (FA) silica fumes (SF) replacemen...

Bacteria-based self-healing concrete has become an effective approach to mitigate microcracks in the structure. However, there are still doubts about when use vegetative cells or spores of Bacillus sphaericus as a healing agent. Thus, this research aims give recommendations regarding choice. Spores and were encapsulated into expanded clay aggregate protect them from harsh environment fresh mort...

Self-Compacting concrete (SCC) needs no external vibration and compacts fully under its self weight. This paper describes experimental work carried out to develop SCC and to study the effect of different sizes (i.e., 20mm; 16mm; 12.5mm and 10mm) of coarse aggregate (C.A) on the properties of SCC. Eight mixes were investigated for M30 grade concrete. The water-powder ratio was kept fixed through...

mixtures of mineral aggregate and modified sulfur, wherein the modified sulfur functions as a binder, are termed sulfur concretes or sulfur mortars depending on the form of the mineral aggregate. molten sulfur reacted with olefinic additive, at 130-140 ºc, and then mixed with preheated filler and aggregates. sulfur mortar samples were prepared by mixing 32 % molten sulfur, 10 % filler and 58 % ...

Firms continue to focus more attention on how to make use of the Internet for commercial purposes. Traditional firms are integrating their existing market channels and their online presence, into what is often called click-and-mortar e-commerce. In this paper we will discuss how click-and-mortar e-commerce generates synergies and customer value, and what implications it has for the type of cust...