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Showing 1 to 8 of 8 for “"crushed limestone"”.
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Behavior of low-frequency sound waves in porous media
… of porous media. Materials studied include crushed limestone, stream-formed pea gravel, large and small sifted pea gravels, and glass spheres. A standing wave curve fitting algorithm was applied to data taken from a vertical impedance tube to determine the propagation and reflection …
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Controlled Oxidation Studies of Coal/Refuse Fuel Blends
… of biomass materials and coals was conducted. Crushed limestone was added to the blends as an absorbent for sulfur oxides. The samples were combusted in quartz-fiber crucibles in a forced air furnace. Combustion at different times and temperatures were studied. The amount of carbon, hydrogen, …
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Evaluation of the effect of fines on asphalt concrete
… The measured specific surface area of the crushed limestone fines is much greater than the values computed using the traditional approach. This implies that the asphalt concrete made with 100 percent crushed material will have a much thinner asphalt film thickness than was considered …
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Redefining Egyptian “pastes”: material characterisation and technological developments in Third Intermediate Period coffin sets from Thebes
… may encompass plasters but also gypsum or crushed limestone bound with organic media, sometimes incorporating clay minerals and plant fibers. Pastes served multiple functions, including the creation of complete objects, gap-filling, acting as a substrate for decoration, and forming a …
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Kraft lignin as a fuel for the rotary lime kiln
… or without natural gas. In a series of trials, crushed limestone was calcined in experiments using three different kraft lignins at various levels of replacement for natural gas. Lignins precipitated from black liquor by both the mineral acid and the carbon dioxide process were burned …
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Development of a simulated natural carbonation test and durability of selected CEM II concretes
… coarse aggregate types, Thames Valley gravel, crushed limestone and crushedgranite were also tested and were shown to have a minimal effect on the carbonation resistance ofconcrete. The influence off ines (particles <125gm, including cement) on carbonation resistance wasalso studied. Adjusting …
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Evaluation of Laboratory Durability Tests for Stabilized Aggregate Base Materials
… blend obtained from Interstate 84 (I-84) and a crushed limestone obtained from U.S. Highway 91 (US-91), while the three stabilizer types included Class C fly ash, lime-fly ash, and Type I/II Portland cement. Specimens were tested for durability using the freeze-thaw test, the vacuum saturation …
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Aggregate characteristics affecting response and performance of unsurfaced pavements on weak subgrades
… Three different aggregate types, namely crushed limestone, crushed dolomite and uncrushed gravel were selected to first quantify the effects of individual test factors on aggregate shear strength, permanent deformation and directional modulus characteristics through a controlled …