1 This test method is under the jurisdiction of ASTM Committee C9 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09 on Normal Weight AggregatesOriginally published as C 127 – 36 TLast previous edition C 127 – 842 Annual Book of ASTM Standards Vol 043 Annual Book of ASTM Standards Vol 04.
2 Bulk Specific Gravity—Bulk specific gravity is the ratio of the ovendry weight of the aggregate to the bulk volume of the aggregate particles1 Balance Class G2 in accordance with Tex901K with a minimum capacity of 10000 g.
4 Annual Book of ASTM Standards Vol 145 Annual Book of ASTM Standards Vol 156 Available from American Association of State Highway and Transportation Officials 444 North Capitol StSuite 225 Washington DC 20001.
5 Apparent specific gravity pertains to the relative density of the solid material making up the constituent particles not including the pore space within the particles which is acces sible to water.
All analysis in the laboratory is related to air or oven dry basis and therefore must be considering the actual soil moisture content Hesse 1971.
Bulk specific gravity saturated surface dry basis — not less than 25 when tested in accordance with ASTM C 127 on samples prepared as described for soundness testingAbsorption — not more than 2 percent when tested in accordance with ASTM C 127 on samples prepared as described for soundness testing.
Dry basis moisture content designated M d in the text is described by the percentage equivalent of the ratio of the weight of water W W to the weight of the dry matter W dNote that dry weight moisture content can range from 0 to very large percentagesDry basis moisture is most commonly used for describing moisture changes during drying.
Expressed as the percentage by ovendry weight of pulp obtained from the original wood weightA recovery value of 45 means that for every 100 ovendry pounds of wood processed 45 ovendry pounds of pulp is producedWhen expressed in this manner pulp yield is mainly a function of the pulping process.
Freshly cut Missouri hardwoods commonly have a 75 percent moisture content on an ovendry basisThat is every pound of freshly cut wood contains 0Therefore the total available heat per pound of wood at 75 percent moisture content is 4900 Btu 0.
in kg quantity per kg dry basisin kg In addition there are two conventions for describing the water content of biofuels water content also referred to as the moisture content in the wet basis and moisture content also referred to as the moisture content in the dry basis.
Heating in an oven use of microwaves or infrared radiationFor coffee beans a reference method has been established ISO 1446 Green coffee – Determination of water content – Basic reference methodMoisture content is given with the relation 215100 − w w d wb W W W mc where mc is expressed on wet basis W w is wet weight and W d.
Jan 10 2014nbsp018332Conversely the bulk specific gravity ovendry is used for computations when the aggregate is dry or assumed to be drySd 5 bulk specific gravity dry basis Ss 5 bulk specific gravity SSD basis Sa 5 apparent specific gravity and A 5 absorption inX2 Then Ss 5 11 A100Sd X2 Sa 5.
Mar 08 2022nbsp018332Preheat the air fryer at 360176F for 2 minutesThen place the clean dry leaves in the air fryer basketPut a rack on top of the leaves to prevent them from being blown around.
The part of a cooker with a door used to bake or roast food 2.
Oven dry weight This is the basis for all soil moisture calculationsThe soil is heated in an oven at 105 degree Celsius until it looses no more water and final weight is recorded as oven dry weightEquivalent moisture tension at this stage is 10000 atmospheresAirdry weight Unlike oven dry weight this is a variable constant.
Calculate the oven dry weight of a 350 cm3 soil sample with a bulk density of 142gcm 3 M s 350cm 3 M s oven dry wtCalculate the porosity of a soil sample that has a bulk density of 1Assume the particle density is 2.
The calculation of the airdry to ovendry or AD2OD ratio is used to adjust all sample weights to an ovendry basisTo calculate the sample weight that is equivalent to the ovendry soil weight the AD2OD ratio is applied.
The dry matter basis of pet food can be defined as the mass of nutrient with the complete absence of moistureThis is to say that one can find the accurate amount of protein fat and fiber contained in the product when the moisture content of the food is completely eliminatedThis is especially applicable for wet pet foods.
The theoretical mixture proportions of following concrete constituents based on 1 yd3 of concrete on an oven dry basis for aggregates are given 1 Water Content 300 lbyd3 2 CementMSA local river gravel Ovendry specific gravity 22 Ovendry rodded bulk density 1024 lbft3 Moisture content of coarse stockpile 3.
The values given are the theoretical mixture proportions oven dry basisMaterial properties are also providedPlease answer the question at the end of the information givenTheoretical Mixture Proportions oven dry basis Water Cement 265 lbyda 675 lbyd 600 1816 lbyd3 Air Coarse Aggregate ASTM C 150 Type 1 Cement Specific Gravity 3.
When measuring the moisture content of the wood on a dry basis the weight of wood does not include any waterIt is the weight of the wood after it is ovendriedWhen wood loses or gains moisture the change in the dry basis moisture is linearly related to the weight loss or gain.
Where bulk density is computed on a moisturefree iOvendry basis the amount of water in the soil is ignored1Note that bulk density is obtained by dividing by the total bulk sample volume including all particle solids and pore space by the ovendry soil mass.
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