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drying shrinkage pennsylvania state university

drying shrinkage pennsylvania state university

CiteSeerX — Drying Shrinkage Characteristics of Concrete ...

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Concrete is subject to some form of restraint, such as steel reinforcement, forms or adjacent members. As concrete begins to lose volume, the restraint inhibits movement, which then induces tensile stress in the concrete. Once the tensile capacity of the concrete has been exceeded, it will crack.

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TECH NOTE NO: 34 TITLE: Fracture and Drying Shrinkage ...

For each of the mixtures three point bending, shrinkage, compression, and tensile splitting tests were conducted. Testing results demonstrated that the use of RCA alone reduced the peak load capacity of the concrete beam specimen, the total fracture energy of the concrete, and created greater drying shrinkage.

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Effect of Graphite on Microstructure and Drying Shrinkage ...

Department of Materials Science, The Pennsylvania State University, University Park, Pennsylvania 16802. Now research engineer, Vesuvius Crucible Co., Research Center, Pittsburgh, Pennsylvania 15205. ... The volume drying shrinkage was first increased and then decreased by successive additions of graphite. The increase was ascribed to the ...

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Drying shrinkage of alkali-activated cements: effect of ...

2019-12-7  Hojati M (2014) Shrinkage characteristics of alkali activated fly ash–slag binders. M.S. thesis, Pennsylvania State University, University Park. 33. Mindess S, Young JF, Darwin D (2002) Concrete, 2nd edn. Prentice-Hall, Englewood Cliffs. Google Scholar 34. Scherer GW (1990) Theory of drying. J Am Ceram Soc 73:3–14

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Effect of Drying Rate on Shrinkage of Alkali-Activated ...

The volumetric instability of alkali-activated slag (AAS) binders has raised concerns and impeded the acceptance of this Portland cement-free material. The objective of this article is to characterize the influence of drying rate on drying shrinkage behavior of AAS mortars to better understand the mechanisms responsible for its large shrinkage deformation.

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Effects of Drying Parameters on Hardwood Lumber Drying ...

2020-12-4  Thesis, The Pennsylvania State University, University Park, PA. 63 pp. Progress 01/01/02 to 12/31/02 Outputs The objectives of this project are to investigate the effects of hardwood kiln schedule drying parameters on the drying rate without increasing drying defect development and hardwood dry kiln drying parameters and procedures on dry kiln ...

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Drying and carbonation shrinkage of cement paste ...

2017-2-6  In this work, shrinkage performance of ordinary portland cement (OPC) paste containing various alkali salts was characterized at two drying conditions, namely: nitrogen gas and air. The results show that incorporation of alkalis dramatically increases shrinkage magnitude, but reduces shrinkage kinetics of OPC, regardless of source and type of alkalis (e.g. Na+ or

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Drying and carbonation shrinkage of cement paste

In this work, shrinkage performance of ordinary portland cement (OPC) paste containing various alkali salts was characterized at two drying conditions, namely: nitrogen gas and air. The results show that incorporation of alkalis dramatically increases shrinkage magnitude, but reduces shrinkage kinetics of OPC, regardless of source and type of alkalis (e.g. Na + or K + ).

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Aleksandra Radlińska's research works Pennsylvania State ...

Aleksandra Radlińska's 65 research works with 1,164 citations and 19,491 reads, including: Hydration of tricalcium aluminate and gypsum pastes on the International Space Station

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Pennsylvania State University - PlantVillage

2021-11-9  PlantVillage utilizes many open-access tools that use remote sensing (MODIS / Landsat / NOAA / Sentinel / SMOS / FEWS NET). We leverage advances in machine learning to train on past data, so we can look into the future and predict the likelihood of an event that can impact a farmer’s yield in a positive or negative way. Learn more.

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TECH NOTE NO: 34 TITLE: Fracture and Drying Shrinkage ...

For each of the mixtures three point bending, shrinkage, compression, and tensile splitting tests were conducted. Testing results demonstrated that the use of RCA alone reduced the peak load capacity of the concrete beam specimen, the total fracture energy of the concrete, and created greater drying shrinkage.

get price

Anomalous Differential Drying Shrinkage of Clay‐Quartz ...

Anomalous Differential Drying Shrinkage of Clay-Quartz Mixtures. R. V. KILGORE, ... The Pennsylvania State University. At the time this work was donc, the writers were, respectively, graduate student and professor of ceramic science, Department of Materials Science, The Pennsylvania State University, University Park, Pennsylvania 16802 ...

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Drying shrinkage of alkali-activated cements: effect of ...

2019-12-7  Hojati M (2014) Shrinkage characteristics of alkali activated fly ash–slag binders. M.S. thesis, Pennsylvania State University, University Park. 33. Mindess S, Young JF, Darwin D (2002) Concrete, 2nd edn. Prentice-Hall, Englewood Cliffs. Google Scholar 34. Scherer GW (1990) Theory of drying. J Am Ceram Soc 73:3–14

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Interactions Between Shrinkage Reducing Admixtures (SRA ...

Pennsylvania State University Gaurav Sant University of California, Los Angeles William Jason Weiss ... Drying shrinkage (DS) and autogenous deformation (AD),

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Effects of Drying Parameters on Hardwood Lumber Drying ...

2020-12-4  Thesis, The Pennsylvania State University, University Park, PA. 63 pp. Progress 01/01/02 to 12/31/02 Outputs The objectives of this project are to investigate the effects of hardwood kiln schedule drying parameters on the drying rate without increasing drying defect development and hardwood dry kiln drying parameters and procedures on dry kiln ...

get price

Using it all: Drying Apples - Penn State Extension

The Penn State Extension Energy, Business and Community Vitality team has identified having "excess fruit and vegetables" (beyond direct sales and wholesale) as a significant challenge for specialty crop producers. Adding value by drying excess produce results in extended shelf life and an alternative consumer offering.

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Sintering Shrinkage and Microstructure Evolution during ...

2008-9-22  The Pennsylvania State University September 4, 2003 Abstract ... Figure 2: Shrinkage rate results showing peaks for PIM and die-compacted samples sintered in H2 and H2:N2. As soon as the temperature starts ramping up again, after the 1010 C hold, there is a sharp increase in the shrinkage rate. This peak is labelled Peak III.

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Thermal Expansion and Density - Pennsylvania State

Thermal Expansion and Density. When water is a liquid, the water molecules are packed relatively close together but can slide past each other and move around freely (as stated earlier, that makes it a liquid). Pure water has a density of

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Air Conditioner Efficiency - Pennsylvania State University

2 天前  EER is basically Energy Efficiency Ratio which is given by number of Btus the air conditioner is pulling out per hour divided by watts of power consumed. 6= BTU / hr 1,000. X=6 × 1,000=6,000 BTU / hr. And in this problem we are given the EER as 6 and we need to calculate the number of Btus it is capable of pulling out.

get price

Pennsylvania State University - PlantVillage

2021-11-9  PlantVillage utilizes many open-access tools that use remote sensing (MODIS / Landsat / NOAA / Sentinel / SMOS / FEWS NET). We leverage advances in machine learning to train on past data, so we can look into the future and predict the likelihood of an event that can impact a farmer’s yield in a positive or negative way. Learn more.

get price

Anomalous Differential Drying Shrinkage of Clay‐Quartz ...

Anomalous Differential Drying Shrinkage of Clay-Quartz Mixtures. R. V. KILGORE, ... The Pennsylvania State University. At the time this work was donc, the writers were, respectively, graduate student and professor of ceramic science, Department of Materials Science, The Pennsylvania State University, University Park, Pennsylvania 16802 ...

get price

Drying shrinkage of alkali-activated cements: effect of ...

2019-12-7  Hojati M (2014) Shrinkage characteristics of alkali activated fly ash–slag binders. M.S. thesis, Pennsylvania State University, University Park. 33. Mindess S, Young JF, Darwin D (2002) Concrete, 2nd edn. Prentice-Hall, Englewood Cliffs. Google Scholar 34. Scherer GW (1990) Theory of drying. J Am Ceram Soc 73:3–14

get price

Using it all: Drying Apples - Penn State Extension

The Penn State Extension Energy, Business and Community Vitality team has identified having "excess fruit and vegetables" (beyond direct sales and wholesale) as a significant challenge for specialty crop producers. Adding value by drying excess produce results in extended shelf life and an alternative consumer offering.

get price

Sintering Shrinkage and Microstructure Evolution during ...

2008-9-22  The Pennsylvania State University September 4, 2003 Abstract ... Figure 2: Shrinkage rate results showing peaks for PIM and die-compacted samples sintered in H2 and H2:N2. As soon as the temperature starts ramping up again, after the 1010 C hold, there is a sharp increase in the shrinkage rate. This peak is labelled Peak III.

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Roots Lab — Department of Plant Science

2021-10-18  Roots Lab. The overall research focus of the Roots Lab at Penn State is understanding the genetic, physiological, and ecological basis of plant adaptation to drought and low soil fertility. Since most soils on earth suffer from drought and one or more nutritional problems, this subject is of considerable importance for two of the great ...

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Injection Molding - Pennsylvania State University

2012-11-30  Voids, Sink Marks, Shrinkage Figure 8: Use of ribs instead of a solid section. Solid section (left) and thin section (right). 10% shrink can be expected. Thick sections cool after gate freezes. Sticking - Injection pressure too high (overpack). Warping - Insufficient cooling before ejection. Burning - Extrusion temperature too high. Shear ...

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Thermal Expansion and Density - Pennsylvania State

Thermal Expansion and Density. When water is a liquid, the water molecules are packed relatively close together but can slide past each other and move around freely (as stated earlier, that makes it a liquid). Pure water has a density of

get price

Air Conditioner Efficiency - Pennsylvania State University

2 天前  EER is basically Energy Efficiency Ratio which is given by number of Btus the air conditioner is pulling out per hour divided by watts of power consumed. 6= BTU / hr 1,000. X=6 × 1,000=6,000 BTU / hr. And in this problem we are given the EER as 6 and we need to calculate the number of Btus it is capable of pulling out.

get price

Pennsylvania State University - PlantVillage

2021-11-9  PlantVillage utilizes many open-access tools that use remote sensing (MODIS / Landsat / NOAA / Sentinel / SMOS / FEWS NET). We leverage advances in machine learning to train on past data, so we can look into the future and predict the likelihood of an event that can impact a farmer’s yield in a positive or negative way. Learn more.

get price

The Pennsylvania State University Penn State

2021-11-19  Penn State is a top-ranked research university and Pennsylvania's sole land-grant institution, founded with a mission of high-quality teaching, expert research, and global service. Discover a community—more than 700,000 strong—driven to make a difference.

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