Search
Now showing items 1-10 of 14
Durability of calcium-aluminate based binders for rapid repair applications
(2016-05)
Within the last few decades, the amount of vehicle miles traveled within the US has increased approximately 40% with the construction of new roads only increasing 4% during this same time period. This dramatic increase ...
Evaluation of concrete structures affected by alkali-silica reaction and delayed ettringite formation
(2012-08)
Alkali-silica reaction (ASR) and delayed ettringite formation (DEF) are expansive reactions that can lead to the premature deterioration of concrete structures. Both have been implicated in the deterioration of numerous ...
An investigative study on physical sulfate attack and alkali-silica reaction test methods
(2011-05)
This thesis is unique in that it investigated two completely different forms of concrete deterioration: physical sulfate attack and the alkali-silica reaction (ASR). Research was undertaken to better understand physical ...
Expansion behavior of reinforced concrete elements due to alkali-silica reaction
(2016-08)
The influence of reinforcement on the development and distribution of multiaxial expansions in reinforced concrete elements due to alkali-silica reaction (ASR) requires further research. Understanding how passive restraint ...
ASR expansion behavior in reinforced concrete : experimentation and numerical modeling for practical application
(2017-09-14)
Most practicing structural engineers are not well-equipped with the knowledge or tools necessary to adequately address the problem of alkali-silica reaction (ASR). While the mechanisms and consequences of ASR in plain, ...
Effects of alkali-silica reaction on the shear behavior of reinforced concrete beams without transverse reinforcement
(2016-08-10)
Alkali-silica reaction, or ASR, is a common deterioration mechanism that subjects concrete to internal expansive stresses. Previous research on the structural effects of ASR has shown that if a structure is effectively ...
Effects of low-level silica fume replacement in ASTM C 1260 and ASTM C 227 mortar-bar testing
(2004-12-18)
Replacement of a percentage of cement by supplementary cementing materials (SCM) can control deleterious alkali-silica reaction. Silica fume, a commonly used SCM, and can be used to mitigate alkali-silica reaction (ASR). ...
Nondestructive evaluation of reinforced concrete structures affected by alkali-silica reaction and delayed ettringite formation
(2011-08)
Alkali-silica reaction (ASR) and delayed ettringite formation (DEF) deterioration have been a problem for the concrete infrastructure in the state of Texas and around the world in recent decades. A great deal of research ...
ASR/DEF-damaged bent caps: shear tests and field implications
(2009-12)
Over the last decade, a number of reinforced concrete bent caps within Houston, Texas have exhibited premature concrete damage (cracking, spalling and a loss of material strength) due to alkali-silica reaction (ASR) and/or ...
Experimental investigation of ASR/DEF-induced reinforcing bar fracture
(2011-12)
Numerous cases of premature concrete deterioration due to alkali-silica reaction and/or delayed ettringite formation have developed within highway infrastructure in the state of Texas over the past two decades. Although ...