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Advanced Functional Materials, EarlyView.This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger +10 more
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Construction and Building Materials, 2009
Abstract This paper presents the results of a study to compare the properties of concretes prepared with the use river sand, crushed fine stone (CFS), furnace bottom ash (FBA), and fine recycled aggregate (FRA) as fine aggregates. Two methods were used to design the concrete mixes: (i) fixed water–cement ratio (W/C) and (ii) fixed slump ranges.
Shi-Cong Kou, Chi-Sun Poon
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Abstract This paper presents the results of a study to compare the properties of concretes prepared with the use river sand, crushed fine stone (CFS), furnace bottom ash (FBA), and fine recycled aggregate (FRA) as fine aggregates. Two methods were used to design the concrete mixes: (i) fixed water–cement ratio (W/C) and (ii) fixed slump ranges.
Shi-Cong Kou, Chi-Sun Poon
openaire +3 more sources
Fine grinding of aggregated powders
Powder Technology, 2002In many cases, including natural ores as well as synthetic powders, fine grinding involves the breakage of bound aggregates rather than solid particles. The characteristics of breakage in such systems have been investigated by experimental studies of grinding kinetics, in a model system of partially sintered alumina particles, ground in a laboratory ...
R Hogg, A.J Dynys, H Cho
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Aggregation Rate of Fine Sediment
Journal of Hydraulic Engineering, 2000A dynamical description of estuarial fine sediment aggregation has been developed. The spectrum of fine particle or agglomerate size is represented by a discrete number of classes based on particle mass. Aggregation and disaggregation, respectively, move mass up and down through the classes.
William H. McAnally, Ashish J. Mehta
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Quantitative Petrographic Evaluation of Fine Aggregate
Cement, Concrete, and Aggregates, 1995Abstract Petrographic examination of coarse aggregate is accepted as a viable method for predicting its durability in concrete. No similar quantitative method existed for fine aggregate, although Guide for Petrographic Examination of Aggregates for Concrete (ASTM C 295) does yield preliminary information of durability of fine aggregate ...
PP Hudec, S Boateng
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2014
Aggregate materials like sand, gravel, and crushed stone occupy a substantial volume of concrete used in constructions. The demand for high quality aggregates that meet the specifications of civil engineers for construction activities is increasing year after year.
D. Padmalal, K. Maya
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Aggregate materials like sand, gravel, and crushed stone occupy a substantial volume of concrete used in constructions. The demand for high quality aggregates that meet the specifications of civil engineers for construction activities is increasing year after year.
D. Padmalal, K. Maya
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Adhesion and aggregation of fine particles
Powder Technology, 2001The influence of interparticle adhesion on the formation and properties of aggregates is reviewed. Increasing the adhesive forces between particles in an aggregate should raise the strength of the aggregate because each particle contact then requires more force for fracture. However, it is well known experimentally that strongly adhesive fine particles
Kevin Kendall, Carl Stainton
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Pozzolanicity of finely ground lightweight aggregates
Cement and Concrete Composites, 2018Abstract This paper examines the pozzolanic behavior of finely ground lightweight aggregates with a mean particle size between 4 and 26 μm. Cement pastes are made with a 20% mass replacement of cement with finely ground lightweight aggregates, fly ash, quartz, and limestone in addition to a control paste with no cement replacement.
Prannoy Suraneni +4 more
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Fine Aggregate Angularity from Geotechnical Perspective
Road Materials and Pavement Design, 2008Particle angularity is an important aspect in the performance of asphalt concrete pavements. When rounded materials are used, the shear strength is reduced resulting in rutting and shoving of the a...
Stan Vitton +3 more
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Fine-grained aggregates in L3 chondrites
Earth and Planetary Science Letters, 1987Abstract The textures and chemical compositions of the constituent minerals of the fine-grained aggregates (FGA's) of L3 chondrites were studied by the backscattered electron image technique, electron probe microanalysis, and transmission electron microscopy.
Seiko Watanabe +2 more
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