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Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

2015

Masters Theses

Civil and Environmental Engineering

<p>Lightweight concrete -- Testing<br />Precast concrete -- Testing<br />Aggregates (Building materials)<br />Shear (Mechanics) -- Mathematical models<br />Friction -- Mathematical models</p>

Articles 1 - 2 of 2

Full-Text Articles in Engineering

Shear-Friction Of Sand-Lightweight Clay And Slate Aggregate Concretes With Varied Reinforcement Ratios, Samantha Lynn Wermager Jan 2015

Shear-Friction Of Sand-Lightweight Clay And Slate Aggregate Concretes With Varied Reinforcement Ratios, Samantha Lynn Wermager

Masters Theses

"This thesis focuses on the structural properties of sand-lightweight aggregate concrete in terms of shear transfer strength at cold-joint interfaces. This type of interface is common for precast concrete connections which are typically designed using the shear-friction concept. This testing program was meant to expand the shear-friction database and evaluate the appropriateness of current shear-friction design provisions with respect to sand-lightweight concrete. This study builds on the work done by Shaw (2013) who studied lightweight expanded shale aggregate concrete. The current study included thirty-two push-off specimens constructed from sand-lightweight concrete with a target compressive strength of 5,000 psi. Either expanded …


An Investigation Of Shear-Friction Of Lightweight Aggregate Concretes, Kristian Krc Jan 2015

An Investigation Of Shear-Friction Of Lightweight Aggregate Concretes, Kristian Krc

Masters Theses

"This thesis reports the results of research initiated to evaluate the influence of lightweight aggregate type and casting procedure on shear transfer across an interface of concretes cast at different times. The topic of shear transfer has been evaluated and revisited in recent PCI Design Handbooks. In this test program, a series of cold joint as well as monolithic specimens are evaluated. The peak shear strength and post peak behavior are examined. The experimental matrix included 28 push-off specimens that were either cast monolithically or cast at different times creating the condition referred to as a cold joint. The variables …