Advantages Of High Performance Concrete

First, concrete durable. Concrete is something that will outlive other products up to three times over (“What Makes…”). In addition to durability, concrete is efficient. Concrete can be made with byproducts from power plants, and other aspects of manufacturing. Concrete is primarily made up limestone, the most abundant material on Earth. Above all of this concrete can be recycled. Concrete can be crushed and recycled into another structure or product, reducing the need to mine the limestone for production. Concrete also allows water to pass through which reduces the chance of flash flooding, erosion, and water table depletion as compared to other materials. This is a major check in the sustainability of concrete; the conservation of soil, landscape and ecosystems. Concrete is a very green option when it comes to building

Concrete is the ultimate building block of society; there are a plethora of ways that it has been used. Romans were some of the first, in recorded history, to use it; they used it to build their aqueducts and even the Colosseum. If anything, the Romans were some of the first to make huge developments in concrete, and they were some of the first to actually use concrete on a large scale. America has also used concrete on a large scale, using concrete to build the Hoover Dam and the Grand Coulee Dam. Those examples show how concrete is an incredibly strong and durable building material that has remained standing after all these years and will continue to be the primary

In order to discuss concrete; one must first mention cement. Cement is a water-based binder used to bind other building materials together. It is used in the production of mortar and concrete during the construction process. Concrete is a material used in construction, made by mixing aggregate, cement, small stones and water. Cement is important because it hold structures together. Many sources states concrete was invented 1756 by a British Engineer named John Smeaton. He did so by mixing pebbles as a coarse aggregate into a powdered brick into the cement. Years layer in 1824, a English inventor named Mr Joseph Aspdin created the first true artificial cement by burning ground limestone and clay together. He is also noted for creating today’s popular concrete; Portland cement. Many buildings use concrete because of its strong element. It solidifies then hardens after mixing with water and placement due to the chemical process known as hydration. Water reacts with the cement, which bonds the other components together, eventually creating a stone-like material. Concrete is used to make pavements, pipe, various structures, foundations, roads, bridges, brick walls and so on. It is either produced site-cast or pre-cast. Site-cast Concrete is standard concrete that is poured into site-specific forms and cured on site; the concrete is created on the actually construction site. Precast concrete is a construction

Aggregate is one of the basic constituents of concrete. Its quality is of considerable importance because about three-quarter of the volume of concrete is occupied by aggregates. One of the physical properties of aggregate that influence the property of concrete is the grading of aggregate. The grading of aggregate defines the proportions of particles of different size in the aggregate. The grading of fine (size < 5 mm) and coarse (size > 5 mm) aggregates are generally required to be within the limits specified in BS 882: 1992.

The definition of high strength changes over the years as concrete strength used in the field increases. Any construction activity requires several materials such as concrete, steel, brick, stone, glass, clay, mud, wood, and so on. However, the cement concrete remains the main construction material used in construction industries. For its suitability and adaptability with respect to the changing environment, the concrete must be such that it can conserve resources, protect the environment, economize and lead to proper utilization of energy. To achieve this, major emphasis must be laid on the use of wastes and byproducts in cement and concrete used for new constructions. The utilization of recycled aggregate

Concrete is a important product that is used in the construction of building and infrastructures. A concrete has to have strength, durability and quality to make a strong and stable infrastructure. This study will tell us does ACC concrete mix is a very good product in the market. Does it pose a strong contender to its competitors in the current market and does the brand image of ACC ltd. plays any role in purchasing of its products.

Concrete is a important product that is used in the construction of building and infrastructures. A concrete has to have strength, durability and quality to make a strong and stable infrastructure. This study will tell us does ACC concrete mix is a very good product in the market. Does it pose a strong contender to its competitors in the current market and does the brand image of ACC ltd. plays any role in purchasing of its products.

Fly ash offers both environmental advantages and also improves the performance and quality of concrete. It affects the plastic properties of concrete by improving workability, reducing water demand, segregation and bleeding and lowers heat of hydration increases the strength, reduces permeability, reduces the corrosion of steel, increases sulphate resistance, and reduces alkali aggregate reaction. It reaches its maximum strength more slowly than concrete made with the port land cement. Also, Concrete is a relatively brittle material, when subjected to normal stresses and impact loads. The tensile strength of concrete is less due to widening of micro-cracks existing in concrete subjected to tensile stress. Due to presence of fiber, the micro-cracks are arrested. The introduction of fibers is generally taken as a solution to develop concrete in view of enhancing its flexural and tensile strength. Fiber reinforced concrete is a short discrete, uniformly dispersed and randomly oriented suitable fibrous material used to increase structural integrity. The amount of fibers added to concrete mix is measured as percentage of the total volume of composites. Aspect ratio (l/d) is calculated by dividing fiber length (l) by its diameter

On comparing to a reinforced concrete component, an element made of high strength concrete will have minor deflection, slighter camber change, lower pre-stress loss and longer life relatively. Additionally, it gives heightened shear capacity of columns and stronger beam-column joints. The other characteristics of high strength concrete are higher compressive strength, better tensile strength and improved

Reinforced concrete is one of the most important available materials for construction in Egypt and all over the world. It is used in almost all structures as: buildings, shells, bridges, tunnels, tanks and retaining walls. Concrete is made by mixing binding materials as sand and gravel held together with a paste of cement and water. The used of admixture is to change certain characteristic of concrete such as workability, durability and time of hardening. Some of concrete advantages are its high compressive strength, its ability to cast in almost any desired shape, its economical and fire resistance. Low tensile strength, low ductility and cracking consider one of its disadvantages. Regardless of this disadvantages,

In civil engineering construction, one of the most determining factors for the stability of a structure is the maximum strength attained by concrete after 14 and 28 days. As such, it is often critical for an engineer to test a particular test concrete cylinder mix for the ultimate compressive strength and then compare it with the design strength before allowing the concrete mix to be replicated in large quantities. The factors that affect the ultimate compressive strength of concrete include the amount of aggregates and the ratio of water to cement.

Reinforced concrete is a very strong, fire resistant and insulating product which does not require an enormous amount of skill and time to construct due the fact that it is pre-cast. This is because the members of the

Cement is the binding material that holds the concrete together, and is therefore a basic need for every construction involving concrete or biding of basic blocks like bricks. Also concrete is the second most consumed material after water, with nearly 3 tonnes used annually for each person in world.

Pakistan’s cement industry is used to produce concrete, the most desirable construction material. It is used in the construction of roads, railways, bridges, houses, buildings etc.

Lucky Cement Limited (LCL) started its operation in 1996 in Pezu plant, Pakistan and currently are the largest producer and exporter of cement in Pakistan with the capability of producing around 25,000 tons per day of dry process cement (Lucky Cement Limited, 2011). Since, inception they have been constantly been growing and now have two operational (Pezu and Karachi) plants in the country. Maintaining the distinction of being customer-centric, LCL produces Ordinary Portland Cement (OPC), Sulphate Resistant Cement, Block Cement and Clinker for corporate clients and individual customers. Although cement industry in Pakistan has shown growth of 2.5%, however LCL grew by 9.2% in 2013-2014 (Lucky Cement Annual Report, 2014). This briefing paper is focused on Ordinary Portland Cement (OPC) which is cement offered by LCL. For the information purposes, I have been associated with LCL for the last few years, most information which is shared in this paper is the result of personal experience, discussion with management, understanding of product and industry.