Mixing conditions were explored as a possible avenue for improvement of demulsifier performance in the solventdiluted bitumen dewatering process. The effects of demulsifier bulk concentration, demulsifier injection concentration, and mixing energy on water and solids removal from the oil phase were tested. All of the experiments were carried out in a confined impeller stirred tank, which provides well-characterized mixing conditions and relatively uniform flow and turbulence. Results showed that lowering the injection concentration and increasing the mixing energy both improve demulsifier performance, allowing a 50% drop in the bulk concentration of demulsifier. This result agrees well with an earlier study by Laplante et al. 1 in which a different demulsifier was investigated. In that study, it was shown that the product of mixing time and energy dissipation rate at the feed point (the mixing energy = J) provides an alternate mixing variable.

In this exploratory research, PET fibre and silica fume were practised for the intensification of the commonplace concrete. PET fibre was practised at dissimilar proportions of 0%, 0.25%, 0.50%, 0.75%, 1.0%, 1.25% & 1.50%, while the silica fume was practised at 0%, 2.5%, 5.0%, 7.5%, 10.0%, 12.5% & 15.0%. for practising the research work in efficient manner purest form of both kinds of constituents were purchased from India-Mart and the physical and chemical composition details for both the constituents were provided by them. Then several samples were prepared depending upon proportion of PET fibre and proportion of the silica fume. Then all the samplings were examined for resistance against the compressive loads, resistance against the tensile loads, resistance against the flexural loads, quality of the PET fibre-Silica fume based modified concrete and its water absorption. The outcomes of the compressive load application test reveals that with the usage of the silica fume most significant value was attained at 15 % practice of the silica fume. Then this silica fume was utilized in combination with the PET fibre. In this particular case most, significant value was gotten at 15% practice of the silica fume and 1.25% of PET fibre. These kinds of outcomes were mainly attained due to the highly reactive nature of the silica fume and it reacts with the cement in a more reactive manner and leads to improved outcomes. The outcomes of the flexural loads and tensile loads application test were similar to the application of the compressive loads and the maximum value in both the cases were attained at 15% practice of the silica fume and 1.25 % application of the PET fibre. It was mainly due to the high tensile strength of both silica fume and PET fibre. The outcomes of the rebound hammer and UPV examination were similar and the best and optimum results were gotten at 15% practice of the silica fume and 1.25 % application of the PET fibre. These kinds of outcomes were mainly attained due to the highly reactive nature of the silica fume and it reacts with the cement in a more reactive manner and leads to improved outcomes.

On these days traffic is increasing faster rate on roads then various type of defects are produced on road that is rutting, raveling etc A pavement structure have different layers purpose to transfered traffic loads to the sub grade. Rutting is one of the pavement distresses that effects the performance of road pavements. Waste plastic is the type of materials to use for improving the performance of flexible pavements against rutting. In this study utilization of waste plastic water bottles, cold drink bottles, polythene bags, parcel package polythene and films. This waste material clean and shredded small particles (1-3cm) sizes. Aggregate heated 170-200° and mix particles with different percentage (3%, 5%, 7%) properly coated on hot aggregate. This plastic waste coated aggregate is also mixed with hot bitumen. And perform some laboratory test (impact value test, moisture absorption test, marshal value test) on the sample and check the property of rutting resistance.

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Geometrical plan lacks on existing streets would prompt an expected mishap, for example, a mishap occurs at the sharp bends, layered asphalt conditions, and dangerous asphalt surface. Street auto collision has been expanding in the Southern Region of Tigray, of which this region was appeared to have disturbing rates. As indicated by the Southern Tigray Regional Police, the more rate of street car crashes were recorded in Garhi, Brimah pull and jekhani regions. This examination study zeroed in on the investigation of auto collisions identified with mathematical plan boundaries of the current black top street. While the information for the investigation covered course information, auto collision report from the police headquarters containing a few wounds, crashes, and destroyed the properties, just as meetings and poll studies to individuals who are straightforwardly engaged with street voyages, are thought of. The essential information has basically covered the math of the street which was estimated during the site study, street security review utilizing the agenda, meeting, and poll study. Then again, the auxiliary information gathered from the traffic the executive’s office in the area workplaces. On this, the outcomes introduced as line diagrams, pie outlines, figures for street car crash and sketch for the proposed improvement in the street plan issue. In view of the aftereffects of the investigation in the year 2015 to year 2019, it discovered that there were 1866 Road Traffic Accidents have been happening nearby the overview street areas. It uncovered that the essential driver of street car crashes in the investigation region exuded from the street plan components because of some mathematical lacks at the auto collision inclined regions uncovered that the essential driver of street car crashes in the examination region radiated from the street plan components because of some mathematical insufficiencies at the car crash inclined regions. Hence, this investigation reasoned that the recurrence of event of street auto collisions and the figure of setbacks is altogetherexpanding. This street mishap would endure if the concerned offices don’t satisfactorily address the disease.