Abul Kalam Azad‚ and Mohammed Abdul Hameed A STUDY OF SELF-COMPACTING CONCRETE MADE WITH MARGINAL AGGREGATES Shamsad Ahmad∗‚ Abul Kalam Azad‚ and Mohammed Abdul Hameed Department of Civil Engineering King Fahd University of Petroleum & Minerals Dhahran‚ Saudi Arabia 1. INTRODUCTION Self-compacting concrete (SCC)‚ developed first in Japan in the late 1980s‚ represents one of the most significant advances in concrete technology in the last two decades. SCC was developed to ensure adequate compaction
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Aggregates for Concrete Aggregates are inert granular materials such as sand‚ gravel‚ or crushed stone that‚ along with water and cement‚ are an essential ingredient in concrete. Aggregates are the most mined materials in the world. For a good concrete mix‚ aggregates need to be clean‚ hard‚ strong particles free of absorbed chemicals or coatings of clay and other fine materials that could cause the deterioration of concrete. Aggregates‚ which account for 60 to 75 percent of the total volume
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Introduction Concrete mixtures can be designed to provide a wide range of mechanical and durability properties to meet the design requirements of a structure. The compressive strength of concrete is the most common performances measure used by engineer in designing buildings and other structures. The compressive strength is measured by breaking concrete specimen in a compression-testing machine. The compressive strength is calculated from the failure load divided by the cross-sectional area resisting
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The poem ’Concrete Angel’ by Martina Mcbride is a very strong and outspoken poem. This poem represents some of the large issues we deal with in our society today. The poem touches base with the children that struggle with abuse from their parents or other family members. Martina uses many symbolistic words that represent child abuse. Martina Mcbride is speaking in third person during this poem. She uses lines‚ such as‚ "but her dreams give her wings‚" to symbolize how the child is staying strong
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to communicate the importance and the significance that Roman Concrete and the Roman Arch played in history. Both architectural elements would greatly impact the whole of the Roman Empire. Concrete; Since 25 B.C.‚ when Vitruvius wrote about the distinct types of aggregate for use in structural mortar in his “Ten Books of Architecture‚” Roman “pozzolana” or concrete quickly became the binding agent in Roman life. The advent of concrete could not be overstated‚ it touched every life in the Roman Empire
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1- Constructivism Piaget vs. Vygotsky Jean Piaget believed that child developments are biological‚ while Lev Vygotsky believed that child development comes is co-constructed using The Zone of Proximal Development and Scaffolding. 2- According to Piaget children can develop their cognitive skills by genetic‚ and exploring the environment around them. He specified that children’s knowledge have three process of adaptation Assimilation‚ when the child uses previous knowledge to understand new information
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children’s toys (Wagner-Ott‚ 2002‚ p. 246). Socialization begins from the day we are born and will continue until the day we die and since toys take place in children’s lives from the day they are born; it is safe to say that they play an important role in a child’s gender socialization (Wagner-Ott‚ 2002‚ p. 246). The nature of this project will be to compare and evaluate children’s toys on the basis of gender. I will be discussing the differences that are portrayed amongst children’s toys and what
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Manage Operational Plan Assessment Activity 1 Describe the purpose of the operational plan and describe its relationship to the strategic plan. An operational plan is an organisational planning document derived from the strategic plan. The strategic plan provides a high-level outline of the organisation’s mission‚ general direction and broad goals and the operational plan is a detailed document that outlines how the organisation’s strategic goals will be achieved in practice. The operational
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Matt Cants Ms. E* 2013 05 28 HRE 4U From learning toys to miniature cars‚ toys have always been an influence on children. Young children have difficulty separating facts from fantasy. Children learn through play‚ and they learn by example. It is through imaginative play that the child begins to learn some of the roles and behaviours of society. Learning to cooperate‚ negotiate‚ take turns and play by the rules are all important skills learned through play. The skill learning process through play
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IDENTFY A PROJECT: * A leadership day at the college PROJECT OBJECTIVES: * The objective of the day is to expose our students at the college to different types of leadership . * We invite leaders in the community to come and orientate the students on the following leadership styles : * Directing * Coaching * Supporting * Delegating * Coercive * Authoritative * Democratic * Relationship – based * Transformational * Coaching
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