Plastic waste has increased significantly in recent years as a result of fast population growth and urbanization. Studies on the incorporation plastic aggregates substitution for natural concrete are needed to successfully reduce both adverse environmental impact depletion resources. The objective this research was investigate use partial coarse concrete. For purpose, seven mixes were produced ...

The construction industry is essential to the development and economy, but also largest generator of demolition waste (CDW). While efforts are made minimize such generation, has been developing applications for it in form aggregates replace commonly used natural aggregates. However, structural applications, necessary ensure that properties concrete produced with CDW, as recycled (CDW-concrete),...

Abstract This study deals with improving the properties of lightweight aggregate by addition Ca-bentonite mineral to expandable clays. The bentonite can result in advanced materials which meet international standards. Besides material, twelve different clays (from Egyptian and Hungarian mines) were studied X-ray fluorescence (XRF), powder diffraction (XRD, Rietveld method), a heating microscope...

In recent years, recycling steel slag is receiving growing interest in the road base layer construction field due to its role alleviating land occupation and resource shortages. However, mixture compaction environmental impact on practical sites remain unclear, which may hinder application of slags layers. This study investigates pavement ‘Baotou-Maoming’ motorway, located Inner Mongolia, China...

Numerous research studies have been conducted to improve the weak properties of recycled aggregate as a construction material over last few decades. In two-stage concrete (TSC), coarse aggregates are placed in formwork, and then grout is injected with high pressure fill up voids between aggregates. this experimental research, TSC was made 100% (RCA). Ten percent twenty bagasse ash used fraction...

In many applications such as IP network management, data arrives in streams, and queries over those streams need to be processed online using limited storage. Correlated-sum (CS) aggregates are a natural class of queries formed by composing basic aggregates on (x, y) pairs, and are of the form SUM{g(y) : x ≤ f(AGG(x))}, where AGG(x) can be any basic aggregate and f(), g() are user-specified fun...

Self-assembled supramolecular organization of nano-structured biomimetic light-harvesting modules inside solid-state nano-templates can be exploited to develop excellent light-harvesting materials for artificial photosynthetic devices. We present here a hybrid light-harvesting system mimicking the chlorosomal structures of the natural photosynthetic system using synthetic zinc chlorin units (Zn...

the mechanical behaviour of rockfill materials and aggregates depends not only on particle size and compaction, but also on their strength and lithological properties. in this research two types of large triaxial and direct shear tests are performed on rockfill materials. this paper compares the stress-strain behaviour of sandstone and andesibasalt materials in triaxial compression tests (3006...

symptoms of the leaf scorch disease on the leaves of oleander infected by xylella fastidiosa appearing for the first time in lebanon were confirmed by elisa tests and anatomical observations of sections of petioles by a scanning electron microscope. xylella fastidiosa was detected in the xylem forming bacterial aggregates in the lumen of tracheary elements. the bacterium colonizes and invades t...