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For concrete roofing, Grade 43 or Grade 53 cement is typically recommended due to their high strength and durability. Grade 53 cement, in particular, offers superior compressive strength, making it ideal for structures that require enhanced load-bearing capabilities. Additionally, using cement with low permeability can help improve the roofing's resistance to moisture and weathering. Overall, the choice between these grades may depend on specific structural requirements and local building codes.

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How much Kg per cum for M40 cement will be?

M40 grade of concrete : is recommended in extreme exposure or when very heavy loads are to be carried (like pier of a bridge etc) Under extreme exposure - reinforced M40 grade concrete should have minimum cement = 360 kg/cubm. This can vary from 300 to 360 for exposures from mild to extreme. Plain M40 grade used under mild to extreme exposure has minimum cement content from 220 to 280 kg/cubm Other considerations like admixtures (fly ahs etc) and actual mix design is the best method of arriving at minimum cement contents.


What is the conrete mixing ratio in M25concrete?

The Concrete mixing ratio for M35 grade concrete as per IS Mix design is1:1.6:2.907 (cement:Fineaggregate:Coarse aggregate)The ratio obtained is as per design calculations by considering the grade of aggregates and the type of cement used.The Water/cement ration is 0.43


How long does it take roofing cement to dry?

Roofing cement typically takes about 24 to 48 hours to dry completely, depending on factors such as temperature, humidity, and the thickness of the application. However, it may be ready for light foot traffic within a few hours. For optimal results, it's best to follow the manufacturer's instructions regarding drying times. Always ensure proper ventilation and conditions for drying.


Can cement bricks and concrete bricks be used together in the same wall construction?

I think that they can, if they are both used correctly, the cement and concrete bricks can be put together in the same wall construction. :) <><><> I think you need to define some words. Concrete is made by mixing portland cement, water, and sand/crushed stone. There ARE no "cement bricks" Traditional bricks are made by mixing clay, shale, and water, and baking them in a kiln (oven) at high temperatures. And yes, regular clay brick and concrete brick/ block are frequently both used in a wall. Together.


What grade of concrete will result in a mix of 3 2 1?

Mixing concrete is a basic skill that all DIY enthusiasts should know how to do. Concrete is one of the most common and inexpensive construction materials on the planet being comprised mostly of sand, gravel and cement. Mixing concrete is similar to baking in that to achieve consistent results it is best to follow a specific recipe. There are a multitude of different concrete mixes for different applications depending on the strength, workability and application for the concrete. Mixing concrete is very much a science for professionals, but to the average backyard enthusiast, learning the basics of concrete is enough to get you started. When mixing concrete you will need to mix aggregates such as sand and gravel along with cement powder and water as a catalyst to begin the chemical process of bonding the ingredients together. Mixing concrete is a function of proportions where you will measure the volume of aggregate used to the volume of cement used. The most common concrete mix used worldwide is the 3-2-1 mix which uses three parts gravel, two parts sand and one part cement. Water is added with the idea that you should use as little water as possible to make the concrete workable for what you need it for. Concrete viscosity is measured by "slump" which refers to a specific test where the amount that a cone filed with concrete will lose its shape once the cone is removed is measured in inches or mm. A concrete with zero slump would be very rigid and dry and inclined to hold its shape, where a concrete with a slump of six inches or more would be extremely wet and not inclined to hold a shape. The 3-2-1 mix is so widely used since you can fill large areas with concrete for relatively cheap. You could potentially use only sand and cement, no gravel, to create what is called mortar. In the 3-2-1 mix the gravel serves as a filler taking up a great deal of space while retaining a relatively high overall strength. The disadvantage of the 3-2-1 mix is that the larger gravel aggregate will often float to the surface during finishing, and is unsuitable for thin or detailed concrete applications. The best overall mix for a DIY enthusiast to memorize and use is a simple 3:1 mortar mix. By using three parts sand and one part mortar you can create the strongest concrete possible as well as concrete that is easy to finish and detail with designs, templates or stamps. By not using the gravel the mortar will have a smoother overall consistency, but will ultimately occupy less volume than concrete made using gravel as well. If you are pouring very large volumes of concrete the gravel could prove to be cost effective however for most DIY projects a 3:1 mortar mix is the way to go. The sand that you need to use for a 3:1 mortar mix should be sharp sand, or masonry sand or jointing sand. Each place that you purchase sand will use a different term so it can be confusing when shopping. All that you need to remember is to avoid play sand. Play sand is sand that has been washed and sterilized (this is ok) and then tumbled to soften all the edges of the individual sand grains (this is bad). The sharp edges of the sand help to hold together the concrete mix better than the rounded edges of the tumbled sand. Ideally you would like to find sand from landscape supply stores which will sell to you by the cubic yard. With a strong trailer you can pick up as much sand as you could possibly need for next to nothing - plus the quality of the sand for making cement will be very high. The applications for a DIY enthusiast to use a 3:1 mortar mix are huge. Everything from fixing broken outdoor steps and stairs, driveways, patios, decks, ponds, waterfalls, artificial rock, statues and much more is possible with a simple mix of sand, cement and water. Start with small concrete projects to get a better feel and understanding for how to work with concrete. Since concrete is so popular world wide, and is a highly advanced science, you will never run out of interesting concrete applications to learn about or try. Combined with being the most affordable construction material on the planet and readily available everywhere - learning to mix basic concrete recipes is a fundamental DIY project. Canadian author and second generation swimming pool expert Steve Goodale has an extensive tutorial series and online following for his instructional information on artificial rock and swimming pool construction and repair.

Related Questions

Which cement is best for house construction?

The best cement for house construction depends on the specific needs of your project. Ordinary Portland Cement (OPC) is ideal for general construction, with 53 Grade OPC being suitable for high-strength concrete. Portland Pozzolana Cement (PPC) offers chemical resistance and is perfect for large-volume RCC work and areas exposed to moisture. Portland Slag Cement (PSC) is excellent for mass concrete work and coastal areas due to its resistance to sulphates. For more details, read more here.


What types of roof tile are best suited for cold climates?

Concrete roofing tiles are extremely strong and capable of withstanding the most brutal weather conditions. They are even fireproof. The tiles consist of a cured product made of cement, sand and pigments.


What is the best concrete formula?

two barrow of river sand and two concrete sone and one cement what square it covers


How much Kg per cum for M40 cement will be?

M40 grade of concrete : is recommended in extreme exposure or when very heavy loads are to be carried (like pier of a bridge etc) Under extreme exposure - reinforced M40 grade concrete should have minimum cement = 360 kg/cubm. This can vary from 300 to 360 for exposures from mild to extreme. Plain M40 grade used under mild to extreme exposure has minimum cement content from 220 to 280 kg/cubm Other considerations like admixtures (fly ahs etc) and actual mix design is the best method of arriving at minimum cement contents.


What type of drill bit is best suited for drilling into cement?

For drilling into cement, a masonry drill bit is best suited due to its ability to effectively penetrate hard surfaces like concrete.


What is the best method for repairing cracks in concrete using cement filler?

The best method for repairing cracks in concrete using cement filler is to clean the crack thoroughly, apply a bonding agent, fill the crack with a cement mixture, and smooth it out with a trowel. Allow the filler to cure according to the manufacturer's instructions for a durable and long-lasting repair.


What are the best portions for the strongest concrete mixture using only cement latex dye water as ingredients no gravel or sand?

Without aggregates or sand it is not concrete.


What is the best flooring option for a basement with a cement floor?

The best flooring option for a basement with a cement floor is vinyl plank flooring. It is durable, moisture-resistant, and easy to install over concrete surfaces.


What is the conrete mixing ratio in M25concrete?

The Concrete mixing ratio for M35 grade concrete as per IS Mix design is1:1.6:2.907 (cement:Fineaggregate:Coarse aggregate)The ratio obtained is as per design calculations by considering the grade of aggregates and the type of cement used.The Water/cement ration is 0.43


What are the concrete mix additives for fast curing?

You could add lime putty. But the best solution would be to get a cement that sets in the amount of time you need, a 'slow setting cement'.


What are the best techniques for creating a durable concrete structure using a sand mix?

The best techniques for creating a durable concrete structure using a sand mix include proper mixing of sand and cement, ensuring the correct water-to-cement ratio, thorough compaction of the mixture, and proper curing of the concrete. These steps help to enhance the strength and durability of the structure.


How many bags of cement in 3000 psi?

The number of bags of cement needed for a 3000 psi concrete mix can vary depending on the specific mix design, but a common ratio is approximately 1 bag of cement (94 lbs) for every 1 cubic yard of concrete. A typical mix for 3000 psi concrete might use a 1:2:3 ratio of cement, sand, and gravel. Therefore, for a cubic yard of 3000 psi concrete, you would typically use one bag of cement. However, for precise calculations, it's best to consult a concrete mix design guide or professional.