Mixed concrete is the basic skill that all DIY enthusiasts should know how to do. Concrete is one of the most common and inexpensive building materials on earth, consisting mainly of sand, gravel and cement.
Mixed concrete is similar to baking, and it is best to follow a specific recipe in order to achieve consistent results. Depending on the strength, workability and application of the concrete, there are many different concrete mixtures that can be used for different applications.
Mixed concrete is very scientific for professionals, but for ordinary backyard enthusiasts, the basics of learning concrete is enough to get you started.
When mixing concrete, it is necessary to mix aggregates such as sand and gravel with cement powder and water as a catalyst to start the chemical process of bonding the components together. Mixed concrete is a function of the ratio and you will measure the volume of the aggregate used for the volume of cement used.
The most common concrete mixture in the world is the 3-2-1 mixture, which uses three parts of gravel, two parts of sand and a part of cement. The idea to add water is that you should use as little water as possible to make the concrete fit your needs. Concrete viscosity is measured by "slip", which refers to a specific test in which the amount of shape that the conical filled concrete loses its shape is measured in inches or millimeters once the cone is removed. Concrete with zero slump will be very hard and dry and tilted to maintain its shape, with concrete with six inches or more sliding will be very moist and not prone to retain shape.
The 3-2-1 mixture is widely used because you can fill large areas with relatively inexpensive concrete. You may only use sand and cement, and no gravel to make the so-called mortar. In the 3-2-1 mixture, the gravel acts as a filler, taking up a lot of space while maintaining a relatively high overall strength. A disadvantage of the 3-2-1 mixture is that larger gravel aggregates typically float to the surface during finishing and are not suitable for thin or detailed concrete applications.
The best overall combination of DIY enthusiasts' memories and uses is a simple 3:1 mortar mixture. By using three-part sand and a portion of the mortar, you can create the strongest concrete as well as easy-to-finish concrete and design, template or stamp details. By not using gravel, the mortar will have a smoother overall consistency, but certainly take up less volume than concrete made from gravel. If you are drilling a lot of concrete, gravel may prove to be cost effective, but for most DIY projects, a 3:1 mortar mixture is a viable option.
The sand you need for a 3:1 mortar mixture should be sharp sand, or masonry sand or joined sand. Every term you buy sand uses different terminology, so you'll be confused when shopping. All you need to remember is to avoid playing with sand. Playing with sand is washed and disinfected sand [which doesn't matter], then tumbling to soften all the edges of each sand [which is bad].
The sharp edges of the sand help to keep the concrete mixture better than the rounded edge of the sand. Ideally, you would like to find sand from the landscape supply store, which will be sold to you in cubic yards. With a powerful trailer, you can pick as much sand as possible - and the quality of the sand used to make the cement will be very high.
The use of 3:1 mortar mix by DIY enthusiasts is enormous. With a simple mix of sand, cement and water, you can repair broken outdoor steps and stairs, driveways, terraces, decks, ponds, waterfalls, artificial rocks, statues and more.
Start with small concrete projects to better understand and understand how to use concrete. Because concrete is so popular around the world and is a very advanced science, you will never have to use interesting and specific applications to learn or experiment. Combine the most affordable building materials on the planet, available everywhere - learning to mix basic concrete formulations is a basic DIY project.
Orignal From: Two of the most important DIY concrete recipe recipes
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