Partial Replacement Of Cement With Corn Cob Ash

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 a tough and reliable material, and it can be used for a wide range of projects. Eventually though, a structure made from this versatile material will need to be replaced. At the very least, it may require repairs.

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

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: - It is one of the most widely used construction materials and has a long history of use. Cement is a very important material. Therefore it is necessary to know about it in some details. Generally, cement has been classified by different types depending upon its strength e.g. grade 43, grade 44 etc. Depending upon the requirement of strength of the structure the contractor decides as to which grade is to be used and where. It can be mixed by simple hand mixing method or for large quantities in a computer control batching plants. It is a solid hard mixture produced by adding Portland cement, coarse and fine aggregates and water in proper proportions.

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,

Construction industry is one of the oldest economy of the world and it use 40% of the resources which are taken out of the earth every year. Since ancient time wood has been one of the most widely used construction material which is only second to stone. Being a natural resource makes wood one of the most economical construction material also from a perspective of environment wood construction is eco-friendlier. Using wood for construction has two major climatic and environment effect. Firstly, material made of wood such as beam, trusses, furniture etc. act as a carbon storage. Secondly, the use of wood over other energy intensive material such as steel and concrete which are made from non-renewable raw materials which cause massive amount of CO2 emission during their production; wood is certainly favorable. Wood has also lower embodied energy content than competing structural materials. Apart of the ecological benefits a building designed using wood is substantial lighter than a building designed using steel and concrete. Heavy timber members have a compressive strength which is quite close to concrete and therefore could be used effectively to replace concrete.

Concrete is a vital construction material having high compressive strength and comparatively low tensile strength. Based on fracture toughness values, steel is at least 100 times more resistant to crack growth than concrete. Concrete in service thus cracks easily, and this cracking creates easy access routes for deleterious agents resulting in early saturation, freeze-thaw damage, scaling, discoloration and steel corrosion.

Concrete is one of the essential component of public infrastructure and most buildings. It can only be more effective if we used reinforcement with it, because tensile strength without reinforcement is very low. It usually get cracked with time as it is brittle in property. There are some more causes of these cracks are shrinkage, inadequate water for hydration… etc. these cracks causes reinforcement exposes to atmosphere now reinforcement come into contact of O2 & H2O. That can cause corrosion which results in weaken of structure. That being said concrete is a high maintenance material. Concrete cracks and suffer wear and tear. Concrete is not as much flexible that it can handle significant amount of strain.

Concrete is one of the oldest and durable composite materials in building and construction engineering. Its importance cannot be overestimated. However, some of its traditional aggregates release a lot of carbon dioxide to the environment during production. In broadening the use of concrete as internal household design like countertops, exploiting the potentials of crushed waste glass as a substitute for the carbon dioxide emitting aggregate is reasonable step towards a greener and healthy environment.

The production of Portland cement is high-energy consumption and produce large amount emission of CO2. Previous research indicates that 0.98kg of CO2 will be created by production of 1kg of Portland cement, including 0.53g from decarbonisation, 0.33g from burning process plus 0.12g from generation of electricity power required. Therefore, for every ton of cement produced, an approximately equal amount of carbon dioxide is relapsed in to atmosphere [2阿三]. The world cement industry contributes 7% of total CO2 emission [3]. This leads to the research of seeking more environmental friendly cements. One of these alternative materials is alkali-activated slag (AAS) cement. Comparing with Ordinary Portland cement (OPC), the AAS has is own advantages. Firstly, it uses ground granulated blast-furnace slag (GGBS) as the binder material of concrete, which is a by-product from industry production. Secondly, AAS cement has low energy cost and low GHGs emissions. Finally, AAS concrete has excellent engineering

ABSTRACT Self compacting concrete with suitable chemical admixtures like Super Plasticizer and viscosity modifying agent can be cured, alternatively by addition of an internal curing agent instead of using large quantities of water. Steel fibers on the other hand have been used in cement and concrete composites for more than four decades, most of the steel fibers were introduced in the market prior to 1980. This is in sharp contrast to the continuous progress and development in the cement matrix itself. The proposed aim of the experiment is to examine the behavior of self compacting self-cured concrete by changing the steel fiber content. The mix incorporated 40 % replacement of cement with fly ash. The compressive strength and flexural strength of concrete were compared with conventional concrete by adding 0.5%, 1% and 1.5% of steel fibers and a notable accession of 79% in flexural strength was observed without compromising with the compressive strength.

The target economic sectors of the proposed research are the sugar industry and the construction industry. The sugar industry will be directly affected, since the main goal of this research project is to develop a sugarcane bagasse ash-based product that can be used as an additive for concrete mixes. Due to the known properties and chemical composition of sugarcane bagasse, it is expected that this new product will be competitive with fly ash in terms of improving the properties of concrete mixes. The newly added economic value of bagasse ash may also make it economically advantageous to burning the entire stock of bagasse fiber for electricity production beyond the needs of the sugar mills. The local construction industry will be indirectly affected by the availability of an additive for concrete production with a lower cost and similar properties to fly ash. This new bagasse ash-based product is expected to reduce the construction costs of projects requiring large amounts of concrete (e.g., foundations, concrete bridges), thus, leading to a potential increase in the number of construction projects per year. The results of this research will have a significant impact on the economic development of US regions where the sugar industry is present, such as Florida, Texas, and Hawaii

The strength of concrete used in the design is 40 MPa for Piles, and 60 MPa for Pile Caps, Columns, Towers, and Girders. In addition, Micro silica is added to increase concrete strength as well as providing sulfate resistance by decreasing average size of pores in the cement paste.