عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
NATIONAL BIBLIOGRAPHY NUMBER
Number
TL53201
LANGUAGE OF THE ITEM
.Language of Text, Soundtrack etc
انگلیسی
TITLE AND STATEMENT OF RESPONSIBILITY
Title Proper
Creation of Cracks of Known Sizes in Reinforced Concrete Beams and Performance Evaluation of Silane in Concrete Bridge Decks
General Material Designation
[Thesis]
First Statement of Responsibility
Aqib, Syed Muhammad
Subsequent Statement of Responsibility
Delatte, Norbert J.
.PUBLICATION, DISTRIBUTION, ETC
Name of Publisher, Distributor, etc.
Oklahoma State University
Date of Publication, Distribution, etc.
2020
GENERAL NOTES
Text of Note
51 p.
DISSERTATION (THESIS) NOTE
Dissertation or thesis details and type of degree
M.S.
Body granting the degree
Oklahoma State University
Text preceding or following the note
2020
SUMMARY OR ABSTRACT
Text of Note
Cracks are a major concern for the durability of concrete as they allow the harmful chemicals from outside to penetrate the concrete surface. Investigating the effect of various crack sizes is vital to further evaluate the surface treatments' performance. In this research, a novel technique is developed to create cracks of known size consistently in reinforced concrete beams using a very simple methodology which applies direct tensile load that cracks the beam. A variety of crack sizes is created ranging from very small (<1/100 inch [0.25 mm]) up to ½ inch [12.7 mm] and based on the results, a simple process is outlined which can be used to create predetermined crack sizes consistently. Silane is investigated as a surface treatment material, using Transmission X-ray Microscopy (TXM) and Optical Staining Techniques. The TXM results revealed that samples with silane coatings exhibited eight and half times less penetration of outside chemicals as compared to non-silane samples at a depth of 2 mm. In some samples, defects on the surface of the silane coating such as cracks, caused the coating to lose its efficiency. Quantitative measurements made using optical staining techniques show that silane thickness for all the 14 samples was 2.5 mm. This work shows in field applications that silanes are a useful and practical tool to significantly reduce the permeability of concrete.
UNCONTROLLED SUBJECT TERMS
Subject Term
Civil engineering
PERSONAL NAME - PRIMARY RESPONSIBILITY
Aqib, Syed Muhammad
PERSONAL NAME - SECONDARY RESPONSIBILITY
Delatte, Norbert J.
CORPORATE BODY NAME - SECONDARY RESPONSIBILITY
Oklahoma State University
ELECTRONIC LOCATION AND ACCESS
Electronic name
مطالعه متن کتاب p
[Thesis]
276903
a
Y
