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Now showing items 31-40 of 82
Reducing shrinkage through admixtures and aggregate gradation
(2021-05)
A study was conducted into the impacts of shrinkage reducing admixtures (SRAs) and larger nominal maximum coarse aggregate sizes on the properties and performance of concrete mixtures. Bridge deck concrete mixtures with ...
Multimodal approach to improve fire safety on construction sites
(2022-12)
Fire risk on construction sites is a threat to property and construction workers’ safety. Fire safety on construction sites has been rarely studied because fire accidents have a lower occurrence compared to Construction’s ...
Development of precast, prestressed concrete pavement technology
(2013-12)
Precast prestressed concrete pavement (PPCP) can provide many advantages over other pavement alternatives whether asphalt or concrete. The possible advantages are thinner pavement, faster construction, increased durability, ...
Performance based testing for air entrainment and total heat of reclaimed fly ash
(2021-07)
As coal combustion energy plants are being converted to natural gas, the tons of fly ash produced in the United States has dramatically decreased. The current demand in fly ash supply can be mitigated with the introduction ...
Compaction studies on open-graded aggregate materials: Moving towards deflection-based compaction control
(2022-12)
Compaction quality control of unbound aggregate layers in pavements has been typically based on target density values, which are defined in reference to the highest densities that can be achieved in the lab using standardized ...
Factors that influence end zone cracking in pre-tensioned prestressed concrete bridge beams - A finite element analysis
(2021-05)
The basic problem studied as part of this master's thesis work consists of two main parts.
Predicting fly ash performance in concrete from particle characteristics
(2020-05)
While fly ash is widely used as supplementary cementitious material (SCM) in concrete, the demands of fly ash have been increased in producing high-performance concrete. Fly ash can contribute to the strength gain and ...
Shear strength, creep and stability of fiber-reinforced soil slopes
(2006-05)
Fiber-reinforced soil (FRS) has been used successfully on more than 50 embankment slopes in the United States in recent years. The geosynthetic fiber reinforcement has consisted predominantly of 25 to 50 mm long polypropylene ...
Quantifying the efficiency and quality of air void distributions in concrete
(2022-05)
This work establishes new ways to measure and examine the air bubble distribution within concrete. This is important to provide freeze thaw durability and resistance to oxychloride formation. These bubbles decrease the ...