(1) Fill the mold with the soil (approximately 0.5 inch to 1 inch above the top of the mold) as loosely as possible by pouring the soil using a scoop or pouring device (funnel). Post was not sent - check your email addresses! Calculate the air space volume. The relative density is written in the following formulas: Add the water to the 50 mL graduated cylinder with the sand. (8) Firmly attach the guide sleeve to the mold and lower the appropriate surcharge weight onto the surcharge base-plate. Volume of sand in cubic foot = 0.9975 ×35.3147 = 35.22 Cuft. Specific Weight or Unit weight of Sand Unit weight or Specific Weight of sand is calculated by the product of the density of sand and the standard gravity of sand. Amazon.com, Calculate the density of the sand. Density of water and gravitational constant ρ w = 1000 kg/m 3 ρ w = 1 g/cc ρ w = 62.4 lb/ft 3 g = 9.81 m/s 2 g = 32.2 ft/sec 2 Relative Density. Remember that density is the mass per unit volume. Do smaller grains pack together more tightly so that the sand is less porous? W10 = bulk weight of the excavated soil = 1896.5 gm. Also, determine the thickness of the surcharge base-plate, Tp. It's the weight of the particles of the soil divided by the total volume. Proceeds from the affiliate programs help support Do your background research so that you are familiar with the terms, concepts, and questions, above. (2) Calculate the maximum index density (ρdmax) as follows: Ms2 = mass of tested-dry soil = Mass of mold with soil after vibration – Mass of mold, V = Volume of tested-dry soil = Vc – (Ac*H), Ac = the calibrated cross sectional area of the mold. Relative density is an index that quantifies the state of compactness between the loosest and densest possible state of coarse-grained soils. Bulk density, or dry bulk density, is a property of soils and other masses of particulate material. Calculate the mass of the sand alone. (3) Determine and record the mass of the mold and soil. See fig-2. The individual grains come in many different sizes. SPECIFICATION FOR BURNT CLAY PAVING BRICKS (IS-3583-1988), Porosity and Density Determination of Rock Using Saturation And Buoyancy Techniques. In Imperial or US customary measurement system, the density is equal to 96.01 pound per cubic foot [lb/ft³], or 0.89 ounce per cubic inch [oz/inch³]. Here's some good background information on the structure of sand: Astronauts bringing sand into space? Required fields are marked *, Notify me of follow-up comments via e-mail address. In order to compute this, you need to measure the density of your sample and/or its overburden. ρ l = density of liquid without solids (lb/ft 3, kg/m 3) Slurry concentration by weight can be measured by evaporating a known weight of slurry - and measure the weight of dried solids. The average of these readings is the final dial gage reading, Rf. The wet volume of the mixture is always less than the dry volume. r b = M s /V s = 575g/400cm 3 = 1.44g/ cm 3 . Home Science Tools, The density of the calibrating sand is first determined in the laboratory. Spiraling motion should be just sufficient to minimize particle segregation. Calculate the bulk density of a 400 cm3 soil sample that weighs 575 g (oven dry weight). Density is defined as mass divided by volume. Write to us at To calculate the weight of a cubic yard of sand, you simply have to multiply its volume by its density. Sand, Silica weighs 1.54 gram per cubic centimeter or 1 538 kilogram per cubic meter, i.e. Dry density = Wet density x 100%/ Moisture content of soil + 100. It can also be thought of as how compacted or compressed a substance is. How does pencil-tamping affect the density of the sand sample? 1. Subtract the weight of the empty cylinder to get the mass of the sand sample itself. Remember that density is the mass per unit volume. Calculate the density. How does air space change as the grain size of the sand varies? Sand= (1.5/5.5) x 1.54 = 0.42 m3 ∴ 1.5 is a part of Sand, 5.5 is sum of ratio Density of Sand is 1450/m3 For KG = 0.42 x 1450 = 609 kg As we know that 1m3 = 35.31 CFT Can I get inference for relative densities of soils….. What is the dimension of the mold and what is the weight for surcharge? The density of a slurry where. Although the feathers and the lead both weigh exactly the same (um, a pound), their density is wildly different, and we can sometimes mentally conflate weight and density - even though they're different concepts. The sand replacement test method is used to determine in situ dry density of soil. Here's how to calculate the fractional air space: Divide the air space volume (in mL) by the starting volume of sand (also in mL). (2) Trim off the excess soil level with the top by carefully trimming the soil surface with a straightedge. You can organize your data in a table like the one below: As you can see, some of the columns contain measured data, and others are from calculations that you perform on the measured data. Measure out 7-8 mL of water in the 10 mL graduated cylinder. Science Buddies, a 501(c)(3) public charity, and keep our resources free for everyone. Our top priority is student learning. (0.025 mm). The field density of […] X 0.012 = 0.12 cu.m. You want it to be about half-way full (5-6 mL), but the exact amount is not critical. Please log in (or create a free account) to let us know how things went. scibuddy@sciencebuddies.org. Divide the mass of the sand by the volume of the sand. Obtain six sets of dial indicator readings, three on each side of each guide bracket. As Geoffrey White states, the bulk density of some so-called “sharp sand” is around 1.6 and 1.8 t/m³. Here is a cool article from NASA on the properties of sand under pressure: Here is an Excel tutorial to get you started using a spreadsheet program: Several different samples of dry sand with different grain sizes, Kitchen balance (preferably with gram scale), such as the, Calculator or spreadsheet program (e.g., Microsoft Excel or WordPerfect QuattroPro). We use cookies and those of third party providers to deliver the best possible web experience and to compile statistics. Density is an important parameter for sand. Weigh the empty graduated cylinder on the kitchen scale. The sides of the mold may be struck a few times using a metal bar or rubber hammer to settle the soil so that the surcharge base-plate can be easily placed into position and there is no surge of air from the mold when vibration is initiated. Stir the mixture so that the water can completely penetrate the sand. The procedures, materials, equipment, and specifications of this test is based on the Indian Standard (IS 2720 part 28). Calculating density. Are you planning to do a project from Science Buddies? Use this paver sand calculator to solve for the amount of sand you need to create a stable layer under a pavement. Use the funnel to pour a sample of dry sand into the graduated cylinder. Divide the mass of the sand by the volume of the sand. Multiply the bank weight by the load factor to get loose weight. Sand is one of the fundamental ingredients in concrete. HOW TO INCREASE REPETITION VALUE OF PLYWOOD? WHAT IS BLENDED CEMENT AND WHAT ARE ITS ADVANTAGES? Whether you’re planning to build an elaborate patio or a paved driveway, you must first create a … Density of sand = Mass of sand / Volume of calibrating container Use our density of sand calculator tool to find the mass of different sad forms. The Density of Sand utility returns sand density based on sand conditions (wet/dry in bulk / packaged). Compared to a typical science class, please tell us how much you learned doing this project. Carolina Biological, and To calculate the granules of sand per unit volume, enter the volume of calibrating container and mass of sand in the above text box. The approximate density of sand is 1600 kg/m 3 (100 lb/ft 3). Calculate the fractional air space. 1) The density of a given material does not change based on the amount of material given (density of 1g of sand = density of 5000kg of sand). Wet density of Soil in-situ = Mass of wet excavated soil (W4)/Volume of hole (V). (12) Determine and record the mass of the mold and soil (M2). Note: more advanced students can use a spreadsheet program to perform the data analysis calculations. Please enter a search term in the text box. Sand Quantity = ( Sand Part / Concrete Parts ) * Concrete Volume = (1.5/5.5) * 2 = 0.5454 m 3. (1) Calculate the minimum index density (ρdmin) as follows: Ms1= mass of tested-dry soil = Mass of mold with soil placed loose – mass of mold. Step-1:Calculate the dry volume of cement and sand mixture required Volume of plaster = Area X Thickness = 10 sq.m. If you have any comments (positive or negative) related to purchases you've made for science projects from recommendations on our site, please let us know. Degree of compaction = Dry density x 100 (370/Maximum dry density. Quantity of sand = 1620 Kg = 1.62 tons. To know more about me just visit AboutMe, WITHOUT USING VIBRATORY TABLE IS THERE ANY ALTERNATE METHOD FOR FINDING RELATIVE DENSITY. You may print and distribute up to 200 copies of this document annually, at no charge, for personal and classroom educational use. Pour the soil sample from the 10 mL graduated cylinder into the 50 mL graduated cylinder. Save my name, email, and website in this browser for the next time I comment. Or is the amount of air space the same (or even greater) in fine-grained sand because there are more grains (thus more air pockets) in the same space? 2. According to the US customary measurement system, dry weighs 1.631 gram per cubic centimeter, this density is equal to 101.8 pounds per cubic foot [lb/ft³]. See fig-1. Science Buddies Staff. density of sand, Silica is equal to 1 538 kg/m³. Calculate the density of the sand. The density of the sand is affected if the sand is compacted (bulged) or loose and if it is wet or dry. density of sand, Silica is equal to 1 538 kg/m³. (7) Determine the initial dial reading by inserting the dial indicator gauge holder in each of the guide brackets with the dial gauge stem in contact with the rim of the mold (at its center) on the both sides of the guide brackets. The relative density of a soil is the ratio, expressed as a percentage, of the difference between the maximum index void ratio and the field void ratio of a cohesionless, free-draining soil; to the difference between its maximum and minimum index void ratios. Calculate Fill Sand Type in inches and feet of your project and calculate the estimated amount of Sand / Screenings in cubic yards, cubic feet and Tons, that your need for your project. Science Buddies Staff. Calculate the fractional air space. It will be equal to the volume of the sand alone plus the volume of the water alone minus the volume of the sand/water mixture. There is a tutorial on programming calculations with a spreadsheet listed in the Bibliography (James, date unknown). secured in the metal plate is then weighed. Did you ever stop and think how it is that you can make the sand take up less space? 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