Also a rational method of mix design was proposed with fixing coarse aggregate at 50% of total volume , fine aggregate percentage to 40% ,maintaining the water powder ratio by volume to to 0.9 to 1.10 and adjusting the water content and superplasticizer dosage. The
Bitumen is the dispersed phase and water is the continuous phase. The bitumen is dispersed throughout the water phase in the form of discrete globule of size ranging from 0.1-50 µm in diameter which are held in suspension by electro-static charge stabilized by an emulsifier. Based on the type of emulsifier used, Bitumen emulsions can be classified as
Wet method is also called chemical method which includes precipitation, hydrothermal technique and hydrolysis. While dry method consist solid state reaction method. The final material varies according to preparative route in the aspects of morphology, stoichiometry, and level of crystallinity. Recent development involves sol-gel, spray pyrolysis, mechanochemical method which is well recognized in literature. Sakka and co-workers first employed sol-gel method to prepare HAp.
Asphalt Concrete Composite Material Report – A Case Study In The Application Of Composite Technology Introduction 1. This report aims to outline the application of a composite material in the field of engineering. I have chosen to do my report on Asphalt Concrete used for Roads and Parkways. 2. Asphalt concrete (Often referred to as asphalt, blacktop, or pavement in the USA, or tarmac in the UK) is a composite material commonly used to: a.
Concrete is a mixer of aggregate, cement, sand, admixture and water. In present time customers prefer Ready Mix Concrete because it is easy, no need of storing raw materials and the strength of the concrete is higher and excellent. But there are many competitors in this concrete manufacturing
• Maximum water-cement ratio and/or maximum cement content to give adequate durability for the particular site conditions • Maximum cement content to avoid shrinkage cracking due to temperature cycle in mass concrete. Types of Mixes : • Nominal Mixes: In the past the specifications for concrete prescribed the proportions of cement, fine and coarse aggregates. These mixes of fixed cement-aggregate ratio which ensures adequate strength are termed nominal mixes. These offer simplicity and under normal circumstances, have a margin of strength above that specified. However, due to the variability of mix ingredients the nominal concrete for a given workability varies widely in strength.
2008). CHAPTER FIVE COMPARISON OF COLD FLOW BENEFITS WITH OTHER TECHNOLOGIES The overall objective for the Cold Flow Technology (CFT) is to demonstrate an innovative and ground-breaking technology solution which allows: • subsea field developments based on ultra-long cold multiphase, wellstream transport in uninsulated pipelines, • with no heating requirements and no chemical additives, and with, • very simplified subsea equipment and control procedures. In this section, the benefits of cold flow technology concepts described in chapter 3 and chapter 4 will be compared with other traditional technologies employed in oil and gas industry to prevent and manage hydrate and wax plug in subsea flowlines. To successfully compare the benefit of Cold flow with other technologies, the cost estimate and qualitative comparison of the different technologies shall be
PROCESSING OF BISCUITS Mixing: Creaming- The ghee, sugar and vanilla flavor is churned so that flavor may get adhered to the fine droplets of fat. Mixing time is of two minutes. Dry mixing- When creaming is over the contents of batter (maida, sugar powder, paste, baking soda, NaCl, SMBS, SMP and ammonium bicarbonate) are also poured to cream fat and mixer is operated for 3-4 minutes. Wet mixing- Along with the ammonium mix from the mixer, 40 kg paste is also taken in barrel and poured to dry mixer and again it is operated for three minutes. The batch is now ready for further processing.
To effect even distribution of API throughout blend, especially low drug load 5. To eliminate dust handling hazards or losses by densifying the blend 6. To increase bulk density for storage, hence reducing caking and lump formation 7. To formulate for controlled release There are 2 types of Granulation, wet and dry granulation. Dry Granulation To induce plastic deformation of powder to facilitate bonding into a compact for subsequent milling into granules.