Concrete is an essential building material which is widely used in construction industry all over the world due to its compressible strength. Curing of concrete plays a vital role in durability and other performance necessities. Improper curing can affect the concrete performance and durability easily. When areas like scarcity of water, structures is not accessible by humans external curing can...

OBJECTIVE The aim of this study was to determine the effects of light intensity and type of light unit (quartztungsten-halogen [QTH] or light-emitting diode [LED]) on the hardening of various resin cements and a resin composite restorative. METHODS Disk specimens were prepared from 4 dual-cured resin cements (Variolink II, Calibra, Nexus 2 and RelyX ARC). Two QTH light-curing units (Visilux 2...

Electrical resistivity measurements are used to assess the potential durability of concrete. The surface method is a popular because ease testing, non-destructive nature, and time efficiency. moisture state concrete has significant influence on results. Laboratory specimens cured using practical curing methods should be saturated before testing eliminate this effect avoid incorrect interpretati...

This article presents an experimental study on the hygric performance of brick masonry with a special focus hydraulic characterization brick-mortar interface. The behavior was studied at level constituent materials as well composite scale. An extruded fired-clay and two types mortar –Portland cement natural lime mortar– were chosen target materials. properties determined following prescribed pr...

The strength of Ultra-High Performance Concrete (UHPC) can be sensitively affected by the curing method used. However, in contrast to the precast plant production of UHPC where a standard high-temperature steam curing is available, an optimum curing condition is rarely realized with cast-in-place UHPC. Therefore, the trend of the compressive strength development of UHPC was experimentally inves...

Monitoring and surveillance of buildings, especially in critical infrastructure is crucial to increase the lifetime such structures. This due fact, that concrete like bridges or road tunnels are prone corrosion their exposure elements. For this task, wireless sensor nodes can be employed structural health monitoring. In last few years passive RFID sensors have been proposed gather data from ins...

The utilization of by-products and waste materials to substitute for the natural or manufactured resources is considered as a practical way obtain green building materials. In concrete mixtures, amongst many available options, Fly Ash (FA) by-product pozzolan has been used partial replacement cement. As aggregates, lightweight agro-waste oil palm shell (OPS) can be conventional aggregate produc...

Food preservation has been practised in many parts of the world for thousands years, and it applies to a wide range foods, including fruits, vegetables, cereals, meat. techniques are canning, freezing, pickling, curing (smoking or salting), drying. spoilage caused by moisture is growth mould, yeast, bacteria, enzymes food. The drying process removes enough from food significantly reduce humidit...

Recently, heat pump drying has been widely used in tobacco processing. Considering the importance of this issue, it is significant to further investigate temperature distribution and energy analysis process. To develop an energy-saving, environmental-friendly, high-quality method, distribution, dehumidification performance, economic issues, thermal efficiency a curing barn (HPCB) traditional co...

OBJECTIVES The aim of this in vitro study was to evaluate the influence of different light curing units and modes on microleakage of flowable composite resins. METHODS Eighty Class V cavities were prepared in buccal and lingual surfaces of 40 extracted human premolars with cervical wall located in dentin and the occlusal wall in enamel. These teeth were randomly assigned into two groups (n=20...