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A study of surface modification effect of hemp fibers on the bulk material properties of hemp-poly (lactic acid) composites: thermal stability, mechanical, therm0-mechanical and biodegradability
Title
A study of surface modification effect of hemp fibers on the bulk material properties of hemp-poly (lactic acid) composites: thermal stability, mechanical, therm0-mechanical and biodegradability
Author
Oza, Shubhashini
Date Created
2013
Subjects--Topical
Civil engineering, Sustainability, Environmental engineering
Description
Biocomposites made with, natural fiber and bio-based polymers, have many advantages over their synthetic counterparts including low cost, low density, high strength and biodegradability. However, some biocomposites can present problems due to high...
ENGINEERED WATER REPELLENCY FOR INFILTRATION CONTROL IN COAL FLY ASH
Title
ENGINEERED WATER REPELLENCY FOR INFILTRATION CONTROL IN COAL FLY ASH
Author
Feyyisa, Jenberu
Date Created
2017
Subjects--Topical
Civil engineering, Environmental engineering
Description
In 2014 approximately 47% of the 190 million short tons of coal combustion product (CCP) was recycled. As a construction material, coal fly ash (CFA) finds considerable use as a partial replacement for Portland cement, as structural fill, and as a...
Mobilization of oxyanion forming trace elements from fly ash based geopolymer concrete
Title
Mobilization of oxyanion forming trace elements from fly ash based geopolymer concrete
Author
Sanusi, Olanrewaju
Date Created
2012
Subjects--Topical
Environmental engineering
Description
The suitability of fly ash based geopolymer concrete as a replacement for ordinary Portland cement (OPC) concrete depends on the mobility of elements from the material. Due to the alkaline nature of geopolymer concrete, there is a potential for th...
Optimal variable speed limit control for mixed traffic flows in a connected and autonomous vehicle environment
Title
Optimal variable speed limit control for mixed traffic flows in a connected and autonomous vehicle environment
Author
Yu, Miao
Date Created
2018
Subjects--Topical
Civil engineering
Description
Traffic demand grows rapidly over the past decades around the world, which leads to severe traffic congestion problems. Congestion has numerous negative effects, such as wasting time of drivers and passengers, increasing delays, decreasing travel ...
POST-LAST GLACIAL MAXIMUM LANDSCAPE EVOLUTION OF THE UPPER CONEJOS RIVER BASIN, SAN JUAN MOUNTAINS, CO, USA.
Title
POST-LAST GLACIAL MAXIMUM LANDSCAPE EVOLUTION OF THE UPPER CONEJOS RIVER BASIN, SAN JUAN MOUNTAINS, CO, USA.
Author
Aldred, Jennifer
Date Created
2020
Subjects--Topical
Geomorphology, Geology, Soil science
Description
Soil development combined with sediment storage and erosion in small, upland watersheds are key landscape processes for which assumptions are frequently made but rarely verified in landscape evolution studies. However, processes such as these, act...
RAPID AND DYNAMIC LOAD TESTING OF INSTRUMENTED PZ27 STEEL SHEET PILES
Title
RAPID AND DYNAMIC LOAD TESTING OF INSTRUMENTED PZ27 STEEL SHEET PILES
Author
Rice, Corey
Date Created
2020
Subjects--Topical
Civil engineering
Description
Pile foundations are typically used for structures underlain by weaker soils in order to increase the soil resistance and, subsequently, the axial capacity. In bridge abutments, sheet piles are typically used as facing elements for soil retention ...
USE OF MULTISENSOR DATA IN MODELING FREEWAY TRAVEL TIME: VARIABILITY ANALYSIS AND PREDICTION
Title
USE OF MULTISENSOR DATA IN MODELING FREEWAY TRAVEL TIME: VARIABILITY ANALYSIS AND PREDICTION
Author
Chen, Zhen
Date Created
2019
Subjects--Topical
Transportation
Description
Nowadays anonymous vehicle probe data have been greatly improved in both data coverage and data fidelity. Thus, vehicle probe data have become a reliable source for freeway travel time analysis. The travel time variability is highly complex as it ...