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|Title: ||Effect of initial curing (no curing, 3, 7 days curing) on shear bond strength (test at 7, 28 days after demoulding) of cement sand manufacturing sand (MS) mortar|
|Authors: ||Chan, Ka Kiu Angela (陳嘉橋)|
|Department: ||Department of Architecture and Civil Engineering|
|Issue Date: ||2015|
|Course: ||CA4511 Final Year Project|
|Programme: ||Bachelor of Engineering (Honours) in Building Engineering (Construction Engineering and Management)|
|Supervisor: ||Dr. Lo, Tommy|
|Citation: ||Chan, K. K. A. (2015). Effect of initial curing (no curing, 3, 7 days curing) on shear bond strength (test at 7, 28 days after demoulding) of cement sand manufacturing sand (MS) mortar (Outstanding Academic Papers by Students (OAPS)). Retrieved from City University of Hong Kong, CityU Institutional Repository.|
|Abstract: ||The purpose of this research project is to find out the effect of using manufactured sand which
comes from crushed rock to replace the normal nature sand to be one of the constituent in mortar
to examine the influence on bond strength among interfacial zone between normal concrete
substrate and manufactured sand mortar. Also, from the performance of bond strength, future
application of mortar in Hong Kong construction industry can be advised. Three different fine
content ( 2%, 5% and 8% ) of manufactured sand would be used ad two water-cement ratio ( 0.45
and 0.55) were adopted. Three different initial curing periods ( no curing, 3 days curing and 7
days curing) were applied to samples. The results used to analyze the shear bond strength
between interfacial area of normal concrete substrate and MS mortar. The following conclusion
1. The higher the fine content will have higher shear bond strength.
2. 0.45 w/c ratio generated a higher shear bond strength.
3. 7 days initial curing produced the highest shear bond strength.
4. 28 days to wait for the mortars to develop their highest shear bond strength.|
|Appears in Collections:||OAPS - Dept. of Architecture and Civil Engineering|
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