Concrete slump test Essays

The Roman Empire The use of concrete in Roman Architecture Introduction: Roma, Modern day Rome, was founded in 753 BC, by the first of the seven Roman Kings, Romulus. The Roman Empire was one of the most powerful civilizations in history. The Roman power was echoed in their buildings with large arches and vast interior spaces, which was possible through the use of concrete. The Romans became such a powerful civilization, firstly, because of its location, Italy, between other powerful civilizations

3.5.2. CONCRETE MANUFACTURE This is a process that describes the making of fresh concrete cubes and testing for compressive strength. The test cubes had a nominal size of 150mm and maximum aggregate size of 20mm. Making test cubes from fresh concrete procedure was in accordance to BS 1881: Part 108: 1983 (cited in Ministry of works, 2000). EQUIPMENT USED • Moulds of cast iron or steel, with removable base plate were prepared. The depth of the mould and the distance between the two pairs of opposite

Concrete is the primary material in construction industry. It consists of cement, coarse aggregate, fine aggregate, water and other admixtures. Generally Ordinary Portland cement is used in concreting but the production of OPC causes a huge amount of carbon emission and also it uses a huge amount of non-renewable natural resources. The concrete construction practice in use is considered as unsustainable because it consumes a huge quantity of sand, stone and water and 2.5 billion tons of OPC per year

Properties of Roller Compacted Concrete with Pozzolan as Cement Replacement Material Introduction: Roller compacted concrete (RCC) gets its name from the heavy vibratory steel drum and rubber-tired rollers used to compact it into its final form. RCC has similar strength properties and consists of the same basic ingredients as conventional concrete_ well graded aggregates, cementitious materials, and water_ but different mixture proportions. The largest difference between RCC mixtures

earthquake-prone areas, but Singapore do not have this problem. The reason of why I did not choose Simple supported spans bridge is because it may be costly even for rather short spans, since expensive steel is required as a construction material. [3]If use concrete to build it, is not that strong to withstand the high tensile forces acting on the beams. As a result we need add some steel mesh to make it more stable. The disadvantage of steel truss

Electric weed eater does not come with much moving parts. The presence of less moving parts gives it an edge over gas weed eater because it makes it not to require much maintenance like the gas powered weed eater. In other words, if you buy this type of weed eater, you will not be spending much money on maintenance or repair. This does not mean that it does not spoil. It can spoil because it is a machine but the rate this happen is low when compared with gas powered weed wacker. Electric weed eater

7-1: How does balance impact visual weight? Balance refers to the even distribution of weight in a composition. In artwork that is a sculpture and architecture, the actual weight is material in pounds or kg. In visual weight, the apparent “heaviness” or “lightness” of the shapes and forms arranged in the composition. The visual balance in composition by three ways—symmetrical balance, asymmetrical balance or radial balance. The first type of balance is symmetry; there are several symmetrical balances

properties test is conducted to determine the physical properties of the peat. According to von Post classification system, the type of the peat used is classified under H7 which is pseudo-fibrous peat or hemic peat. This present study focusing on study to determine the strength development before and after fiber inclusion on the peat for stabilized purposes. The mechanical test such as compaction test, unconfined compressive strength (UCS) test and California bearing ratio (CBR) test were conducted

Waterproofing & Flashing Repairs Masonry materials which are used in the construction of chimneys, are materials which are extremely porous by nature. What does this mean? Basically it means that the materials are going to absorb a large amount of water. The common brick which is used in the construction of chimneys is extremely spongy. It absorbs a high amount of water, which causes it to wick on the interior walls of the chimney in your home. If defective mortar joints are used in the construction

The uplift height adjustable sit stand desk is an ideal desk for business or personal use and is one of the best pieces of furniture according to those that use it. Various people with or without any type of disability issues can use it, especially those that are in wheelchairs and need adequate space when working at a desk. This desk could also be used as an integral part of a proper ergonomic workstation for those that sit all day and wish to stand for health reasons to decrease the risk of obesity

Concrete, or more specifically ready-mix concrete, is a common material for driveways and walkways. While it works well and is usually quicker to pour, it is prone to some issues. Discoloration, flaking, and crumbling are all pitfalls of ready-mix concrete. Fortunately, these pitfalls can easily be avoided. If you have recently had your driveway or walkway poured with ready-mix concrete, use these four tips to help it keep it looking beautiful and healthy for years to come: 1. Keep Salt And De-Icers

In my art The Rose That Grew From Concrete, the medium is dry media. Dry Media, includes metalpoint, chalk, charcoal, graphite, and pastel, consist of coloring agents, or pigments, that are sometimes ground or mixed with substances that hold the pigment together , called binders (Sayre,180 ). In addition, the materials I used for my art work is pencil and markers. The Rose That Grew From Concrete is 2 dimensional and the dimension of my art work is 11x 14in/ 27.9 x 35.6 cm. My artwork consists

structure was a hybrid called, “Composite”. This was made possible due to the Roman invention of concrete. “Its basis was pozzolana, a chocolate-coloured volcanic earth originally found near the Greek settlement of Puteoli, and subsequently discovered in vast quantities around Rome.” http://www.classicspage.com/ When pozzolana was mixed with lime, along with broken pieces of brick, it was able to form into concrete. This incredible invention paved the way for dome structures to be built such as the Pantheon

development of the arch as well as the development of concrete and its role in Roman architecture. Concrete, like the arch, was an important invention or discovery in Ancient times. The use of concrete allowed the Romans to create sculpted shapes like columns or arches and build circular buildings such as the Pantheon (Kamm, n.d.) The first documented use of concrete by the Romans was in the town of Cosa sometime after 273 BC. Ancient Roman concrete was a mixture of lime mortar, sand, water, and stones

The architecture known in Roman era through the archs , vaults and the domes, and most of them still existed 2000 years ago and this is because of the strength of the technique, construction and the materials used to build them, such as cement, concrete, marble, stone, and white limestone It was especially used for paving, door and window frames, and steps. The most common architectures in this era: -Columns: there are different types of columns: -Temples: The Roman temple (Maison Carré) of Nimes

Government. The Aenid, which is one of Roman Literature, is still being read to this day. In this paper, I will discuss the development of both concrete and the arch. In addition, I will include the importance of each in the life of Rome and the results of their use. An arch by definition refers to a curved structure that is usually made out of stone, brick, or concrete. In the most recent times, steel has also been used. The purpose of an arch is to strengthen, or to support a building structure. Most of

nothing is as magnificent as the Romans development of concrete and its use for constructing walls, theaters, and those beautifully graceful bridges. The Egyptians were the first civilization to create a type of concrete by mixing together mud and straw and forming them into bricks around 5000 BC. The greeks discovered volcanic ash, also known as pozzolana, and that by mixing it with lime to form a mortar, they had an end result of concrete with hydraulic properties. However, the Romans further

Roman concrete was based on a hydraulic-setting cement. So, before going further, let me talk briefly about Roman cement which together with aggregates make up Roman Concrete. Roman cement is made by burning cement-stones, or septaria in a kiln “with a heat stronger than that used in burning lime” as described by James Parker in 1796. It sets quickly even in the presence of water which explains why the Romans could use it to construct under-water harbors and tunnels. Moreover, because of its ability

actually one the largest concrete structures of its times having a thickness of the wall between 8 to 20 feet? 2. Portland cement requires essentially the natural hydraulic limestone. Do you know that the water-resistant material prepared after limestone is mixed with water, instead of ageing actually get stronger with time? 3. Nowadays, concrete is essential for almost all types of construction purposes. Starting from railroads, bridges to waterways the use of concrete can be found everywhere and

AIM & INVESTIGATION The aim of this investigation was to test a range of substances and recommend one to be used as the best insulator. MATERIALS & EQUIPMENT USED 1. Steel Wool 2. A Stubby 3. Bubble Wrap 4. Thermometer 5. 4x355ml Soda Cans 6. Kettle 7. Measuring Glass 8. Funnel 9. Measuring Cylinder HYPOTHESIS If the independent variable changes then the results and outcomes of each testing done with the insulators will be different. The time intervals will also depend on which insulator is the