The Cold Side Of Concrete

The basic principle to remember is that concrete is a sloppy God-awful mess when we first look at it but then we turn it into something wonderful. We take the sloppy mud like concoction and

This is because concrete is porous and water will gradually seeps in and begin breaking down the concrete. As a result, the foundation will start to crack, which can eventually cause the foundations to shift and even the house to become unsettled. Ceiling cracks or splits in the inside wall may indicate the foundation is shifting. On the other hand, during the winter, stagnant water that has seeped into the concrete can actually freeze. As the water in the concrete freezes, it will expand and push the concrete out. This will cause seams in the walls and

Although we all know ice can create hazardous conditions on your property, we also don't want to create more serious problems by applying the wrong ice melting product. Unfortunately, the use of salt on concrete surfaces has been a major concern for property owners. So how does salt damage concrete surfaces, and what are some of the best alternatives to protecting your pavement?

Concrete has been used to build roads in America; although this is an expensive alternative to asphalt, it holds more advantages than normal asphalt. Concrete is more durable than normal asphalt and is capable of giving drivers better gas mileage. Concrete roads have also been proven to be more skid-resistant with the addition to grooves to the concrete. It can also help drivers save more gas money since it’s been proven to be fuel efficient. With the advances of modern science, scientists and concrete manufacturers have created some ways of creating concrete in a cheaper way so it can be used more often in creating

Concrete has been highly praised within the concrustion sector due to the fact that it offers long-term strucrual integritiy. This is why it is used for many parking lots, roadways and bridges. In fact, concrete is regarded as being one of the most functional surfae materials that is avialable to man. As such, regardless if you own a motorcycle, or a large SUV, rest assured that concrete's density and strenght, will not be affected by a vehicle, even if it weighs thousands of

Concrete is an artificial stone-like material used for various structural purposes. It is made by mixing a binding material (as cement) and various aggregates (inert materials), such as sand, stone chips, brick chips, brick chips, pebbles, gravel, shale, etc with water and allowing the mixture to harden by hydration. There are many types of concrete available, created by varying the proportions of the main ingredients below. In this way or by substitution for the cementations and aggregate phases, the finished product can be tailored to its application with varying strength, density, or chemical and thermal resistance properties, Portland cement is the most common type of cement in general usage. It is a basic ingredient of concrete, mortar and plaster. Importance of Concrete some important of concrete are given below. Concrete is economical when ingredients are readily available. Concrete is a non-combustible material which makes it fire-safe and able to withstand high temperatures. It is resistant to wind, water, rodents, and insects. Hence, concrete is often used for storm shelters. Concrete could be requested in a variety of ways. It could be requested with a considerable measure of "fly ash" in the mix. Fly ash is a substitute for cement.

Concrete samples are considered over different time period for example the fresh concrete,7 days as well as 28 days and tested after keeping those specimens under different weather conditions. In lab, samples were kept under different conditions as follows:-

Going into details with thermally activated concrete slabs, there are several thermo active slab systems that could be applied all with the same concept but the difference is according to the position of the pipes. For example capillary tube systems were the pipes are fixed under the concrete slab which is not that much efficient as it doesn’t take advantage of the thermal mass capacity of concrete. Second under floor temperature control in which the pipes are embedded under the floor which is also not that much efficient as cooled air moves down ward not up wards so it will not be suitable for cooling but for heating. Concrete core temperature control in which the pipes are embedded in the concrete core proved

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

Concrete is a significant structural material used all around the world. Moreover, the complexity of structures and their magnitude have continued to increase, and this has resulted in a greater importance of their strength and distortion characteristics in more serious consequences of their behaviour. Engineers have been working on the development of innovative types of concrete. One of the most promising products is fiber-reinforced concrete (FRC). Fibers in concrete provide better-quality mechanical and physical properties of the material. For example, the obtained fiber-reinforced concrete has higher resistance to cracking. In this paper we will be discussing fiber reinforced concrete as an alternative to the conventional concrete.

amount of mix needed to achieve the desired result is an iterative process. This is

At present, the number of construction waste has accounted for 30% to 40% of the total municipal solid waste. The vast majority of construction waste without any treatment, it was using open dumps or landfill processing manner, causing serious environmental pollution. According to Wang (2014) mixed waste Concrete as the most important part of the construction waste, by estimating the amount of waste in 2003, China has reached 180 million tons of concrete. It has caused a great negative environment impact. At the same time, concrete production requires a lot of sand and gravel aggregate, as natural Gravel continuous exploitation of natural aggregate resources will also become exhausted, in addition, the exploitation cost astonishing transportation fees and power , it will also cause ecological environment experienced a serious damage. However, Make full use of recycled aggregate concrete, not only can effectively reduce the amount of construction waste, but also reducing the damage of construction waste pollution to the natural environment, while taking advantage of waste aggregate manufacturing recycled aggregate concrete can reduce the exploitation of natural aggregate, reaching the aim of sustainable environment development. However, due to there are some technical limitation, the implementation of using recycled concrete cannot be popularized into the civil engineering. For example, on the performance of durability, frost-resistance, and water absorption existed

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

The production of self-consolidating concrete consists of limiting the coarse aggregate content to about 50 % or less of the solid volume, limiting its maximum size to 20mm and using lower water to powder ratios together with appropriate superplasticizers. (Okamura and Ouchi, 2003).

When pervious concrete is used for streets, parking areas, plazas and walkways it minimizes storm water runoff to surrounding streams and lakes. Pervious concrete has been documented as eliminating storm water runoff and improving potential water quality In addition to the storm water management benefits of pervious concrete, it can also act to reduce the heat island effect of concrete by absorbing less heat from solar radiation than darker pavements. Thus reducing the humidity and the earth’s temperature. The relatively open pore structure and the light color of pervious concrete stores less heat, therefore, helping to lower heat island effects in urban areas, ie., reducing the humidity and the earth’s temperature.