I may just use chairs. I have some rebar laying around, but I dont think its enough. At the end of the day, it is just much, much easier to pour 5.5" thick of concrete, but I do think 1.5-2" of gravel under it is a good idea, just a much more difficult bit of logistics. -

Learn MoreMany concrete contractors identify 4" concrete on a 6" to 8" prepared base as the minimum they will install and the average thickness between 5" and 5-1/2". The average thickness of a residential driveway, including base, ranges from 10" to 12-1/2". The thicker the concrete and base, the stronger and more durable the driveway.

Learn MoreThese features are not necessary to get the job done correctly but will make a concrete drilling job easier. Carbide Tipped Drill Bits for Concrete Drilling. When drilling a hole for a concrete fastener, the quality of the hole is critical. For this reason, it is imperative to use a proper drill bit.

Learn MoreTo make this mix, you'll need to combine 1 part cement powder, 3 parts sand, and 2 parts washed aggregate. 5,000 psi Concrete Mix Ratio. When working to achieve a 5,000 psi or higher concrete mix, you should consult with a professional before commencing. This is especially true if your concrete will eventually be load-bearing in nature.

Learn MoreMortar typically has a higher water to cement ratio when compared with concrete which allows greater workability and is required to form mortars bonding properties. Typical mortar types are discussed below and a basic guide to mix ratio's and expected minimum compressive strengths has been provided.

Learn MoreConcrete mix ratio: The strength of concrete mixture depends on the ratio in which these four ingredients are mixed. Concrete mix ratio of 1:3:3 - On mixing 1 part cement, 3 parts sand with 3 parts aggregate produces concrete with a compressive strength of 3000 psi.

Learn MoreQuikrete 80 lb. Concrete Mix can be used for building or repairing foundation walls, sidewalks, curbs, steps and ramps and for setting posts. This concrete mix is designed for pouring concrete 2 in. thick

Learn MoreThus, the quantity of cement required for 1 cubic meter of concrete = 0.98/0.1345 = 7.29 bags of cement. The quantities of materials for 1 m3 of concrete production can be calculated as follows: The weight of cement required = 7.29 x 50 = 364.5 kg. Weight of fine aggregate (sand) = 1.5 x 364.5 = 546.75 kg.

Learn MoreCalculation of Water Quantity for Concrete. As you can see from the Chart, the W/C Ratio varies from 0.4 to 0.7 depending on exposure conditions. If we need to calculate Water quantity for concrete, first find the cement content for the volume. Therefore, Required amount of water = 0.5 X 50 kg = 25 litres / 50 kg cement bag.

Learn MoreHere is my math on the amount of cement: From the American Cement Industry I found that cement trucks carry between 8-12 yards, so I used 10 right in the middle. 1 yard = 4,000 pounds; 10 yards=40,000 pounds. Vestas said it used 160,000 loads. 160,000 X 40,000= 64,000,000,000 pounds.64billion divided by 2,000= 32 million tons.

Learn MoreQuestion 104625: A concrete mix is in volume proportions of 1 part cement, 2 parts water, 2 parts aggregate, and 3 parts sand. How many cubic feet of each ingredient are needed to make 54 cu ft of concrete? Answer by HyperBrain(694) (Show Source):

Learn MoreThe sand should pass the No. 30 sieve. Proportion water- cement bonding grouts at the rate of 1 bag of cement to 6 to 7 gallons of water. Some project specifications permit a water-cement grout with a water cement ratio of 0.62. This allows the grout to be sprayed on the surface to a depth of about 1⁄16 inch.

Learn MoreTo do this calculation, add the sum of ratio 1+2+4=7. Calculate the cubic volume of concrete for foundation. Going by the previous article the total lenght of trench was taken as 65.6m. Height of concrete beam is 1.1m or 1100m from image 2. And width is 0.225m or 225mm. therefore total volume of concrete beams =65.6m x 1.1 x 0.225 =16.236.

Learn Morecement - concrete's key ingredient Development of new concrete additives could produce a stronger, more workable material whilst reducing the amount of cement required and the resulting CO2 emissions 'The reason concrete has such a big carbon footprint is because such huge quantities are used' Already 605 metres high,

Learn MoreWith a mixer of 120L capacity, with a 1:6 mix, the cement portion for a batch needs to be more-or-less half of a 25Kg bag of cement. * I'll be making then 6 batches as I use up my 3 bags of cement as I make my 0.25 cu m of concrete. * Can use a bucket for measures if not confident about shoveling in the materials.

Learn MoreEXAMPLE: How much concrete is needed to fill 5 holes 1200mm deep and 1050mm round? ANSWER: One hole takes 1.039 cubic metres, therefore 5 holes = 5 x 1.039 = 5.195. (say 5.2 cubic metres) NOTE: When the Diameter of a hole is doubled, it takes 4 times more concrete.

Learn MoreAns. Materials required are 7 nos. of 50 kg bag of cement, 0.42 m 3 of sand and 0.83 m 3 of stone aggregate.

Learn MoreA concrete mixer (often colloquially called a cement mixer) is a device that homogeneously combines cement, aggregate such as sand or gravel, and water to form concrete. A typical concrete mixer uses a revolving drum to mix the components. The concrete mixer was invented by Columbus, Ohio industrialist Gebhardt Jaeger.

Learn MoreFor estimating purposes, you can make about 1 cubic yard of concrete with 5 1/2 94-pound bags of cement, 17 cubic feet of sand, and 18 cubic feet of gravel. (It takes about forty 80-pound bags of prepackaged materials (like Quikrete) to make 1 cubic yard of concrete.)

Learn MoreOne bag of cement and other ingredients can produce = 400/2400 = 0.167 Cum of concrete (1:2:4) 01 bag cement yield = 0.167 cum concrete with a proportion of 1:2:4. 01 cum of concrete will require. Cement required = 1/0.167 = 5.98 Bags ~ 6 Bags. Sand required = 115/0.167 = 688 Kgs or 14.98 cft. Aggregate required = 209/0.167 = 1251 kgs or 29.96 cft

Learn MoreThe volume of mortar required = 0.03 x 150 = 4.5 m 3. Typical mix ratio for mortar (laying of blocks) is 1:6. Cement requirement Quantity of cement required = 1/7 x 1440 kg/m 3 = 205.71 kg Making allowance for shrinkage between fresh and wet concrete = 1.54 x 205.71 = 316.79 kg Quantity of cement required in bags = 316.79/50 = 6.33 bags. For 4

Learn MoreIngredients: Amounts required for approx. 1 cubic metre of concrete: Paving mix (strong mix suitable for exposure to all weathers, including frost), using separate aggregate 1 part cement 1.5 parts sharp sand 2.5 parts 20mm coarse aggregate: 16x25kg bags

Learn MoreCalculating the Total Number of Concrete Blocks Required In order to calculate the quantity of concrete blocks your wall will require, you need to know the distance between each concrete block. This is known as the mortar joint, and is usually given in inches.

Learn MoreQuantity of Water is added in M20 grade concrete (All grades):-As I was already given a detailed explanation about how to find out the quantity of Cement, Sand and Aggregate required for different grades of concrete. Here you can learn about the quantity of water is added in M20 grade concrete (all grades).

Learn MoreCONCRETE MIX WITH AIR 25 MPa, 30 MPa, 35 MPa or 40 MPa DESCRIPTION: CONCRETE MIX WITH AIR is a pre-blended mix of fine and coarse aggregate and Type 10 Portland cement packaged in 30 kg sacks and in one cubic yard (.76 m3) bulk bags. It is available in compressive strengths of 25 MPa, 30 MPa, 35 MPa, and 40 MPa.

Learn MoreMixing ratio to make 1 yard of concrete. To produce a 3000 psi cubic yard of concrete (27 cubic feet) the concrete mixture ratio is: 1. 517 pounds of cement. 2. 1560 pounds of sand. 3. 1600 pounds of stone. 4. 32 - 34 gallons of water. This mixing ratio will give you a concrete mix that is strong, durable, and good for most concrete projects.

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