When it comes to constructing structures and making repairs, the strength of concrete is vital. However, it can be affected by various factors, including environmental conditions and water content. In addition, prematurely dried concrete will experience unequal tensile stresses, causing it to crack mac be tong . Consequently, it should be cured before use. In addition to curing, it should be stored in damp conditions after pouring. This will prevent the concrete from shrinking too much. Finally, low temperatures can negatively affect the strength of concrete, and therefore, it is important to avoid them.
In addition to these advantages, concrete is also an economical building material. The ingredients are readily available, and construction can be completed quickly. Because of its low cost, it is ideal for fast-track projects. In addition, concrete structures can withstand natural disasters and have a long lifespan. In addition, concrete is easy to mix, making it the most popular building material today. Listed below are some of the benefits of concrete: (a) Easy to use and maintain
The most important ingredient in concrete is cement. Its properties make it a durable material that lasts for decades. The right cement is the key to a strong structure. Despite being a popular building material, it must be durable enough to withstand extreme temperatures. Otherwise, it will crack. Moreover, the right mix is vital for the durability of a building. To ensure the stability of a building, the cement must be of high quality.
There are two kinds of concrete. Normal strength and high strength. These two are usually mixed in the same proportion. A normal mix is made from a mix of cement and sand, and it takes between 30 minutes and 90 minutes to set. Depending on the requirements of the project, this type of concrete can be used for pavements or buildings without a high tensile strength. But they are not suitable for building structures, as they cannot withstand stress caused by vibrations or wind loading.
The strength of concrete depends on its mix. Ordinary construction uses a nominal mix. A nominal mix is made using a ratio of cement and sand. The structural design determines the strength that is needed in a structure. During this process, the cement will be dissolved in water until it is a solid substance. This type of concrete is used for pavements and buildings that are not required to have high tensile strength.
The density of a concrete mix depends on its composition. The ratio between cement and sand is a good indicator of its strength. For ordinary construction, a nominal mix uses a 1:2:4 ratio of cement to sand. This is the basic formula for the normal-strength concrete. The design mix, on the other hand, is based on the proportions finalized during laboratory tests. A design mix is used for structural reasons, such as determining the compressive strength needed for a particular structure.