Q. How can unreinforced concrete pavement function without mesh reinforcement?
For concrete carriageway, it is normally classified into two types: reinforced and
unreinforced concrete pavement. The reinforcement in reinforced carriageway (in the form
of mesh) is used for controlling cracking. Then one may query how unreinforced pavement
can control cracking without the use of mesh reinforcement. To answer this question, one should pay attention to the features of unreinforced concrete pavement. In accordance with Highways Standard Drawing No. H1109, an approximately 3mm wide groove with a depth of about one-third to one-fourth of slab thickness is designed with a regular spacing (normally 5m). The grooves are designed to be too narrow for stones to fall into when the cracks are open due to concrete contraction. The sectional area in which the groove is located is a plane of weakness and thus this groove acts a potential crack-inducing device in which any potential cracks due to shrinkage and thermal contraction may form. Consequently, the cracks are formed at the base of the groove and thus it would not cause any unpleasant visual appearance on the exposed surface of unreinforced concrete pavement.
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~~~~~~~~~~~~~~~~~
Modern Roads:-
•The modern road's design for heavy trucks and cars, after the industrial revolution a lot of different axles sizes appeared, to create a better riding surfaces, different types of roads and materials developed.
#share it!! @engineer03
@civilEngineerWork_Bot
For concrete carriageway, it is normally classified into two types: reinforced and
unreinforced concrete pavement. The reinforcement in reinforced carriageway (in the form
of mesh) is used for controlling cracking. Then one may query how unreinforced pavement
can control cracking without the use of mesh reinforcement. To answer this question, one should pay attention to the features of unreinforced concrete pavement. In accordance with Highways Standard Drawing No. H1109, an approximately 3mm wide groove with a depth of about one-third to one-fourth of slab thickness is designed with a regular spacing (normally 5m). The grooves are designed to be too narrow for stones to fall into when the cracks are open due to concrete contraction. The sectional area in which the groove is located is a plane of weakness and thus this groove acts a potential crack-inducing device in which any potential cracks due to shrinkage and thermal contraction may form. Consequently, the cracks are formed at the base of the groove and thus it would not cause any unpleasant visual appearance on the exposed surface of unreinforced concrete pavement.
《Share with friends》
use discussion group for your answer @engineersWorks
~~~~~~~~~~~~~~~~~
Modern Roads:-
•The modern road's design for heavy trucks and cars, after the industrial revolution a lot of different axles sizes appeared, to create a better riding surfaces, different types of roads and materials developed.
#share it!! @engineer03
@civilEngineerWork_Bot
[Architecture_Ebook]_Design_of_Masonry_Structures.pdf
3.6 MB
DESIGN OF
MASONRY STRUCTURES
Third edition of Load Bearing Brickwork Design
The first edition of this book was published in 1981 as Load Bearing
Brickwork Design, and dealt with the design of unreinforced structural
brickwork in accordance with BS 5628:
✍Part 1. Following publication of this Code in 1985, the text was revised and extended to cover reinforced and prcoverssed brickwork, and
Part 2. the second edition published
in 1987. The coverage of the book has been further extended to include
blockwork as well as brickwork, and a chapter dealing with movements
in masonry structures has been added.
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t.me/engineer03
Send comment and suggestions
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MASONRY STRUCTURES
Third edition of Load Bearing Brickwork Design
The first edition of this book was published in 1981 as Load Bearing
Brickwork Design, and dealt with the design of unreinforced structural
brickwork in accordance with BS 5628:
✍Part 1. Following publication of this Code in 1985, the text was revised and extended to cover reinforced and prcoverssed brickwork, and
Part 2. the second edition published
in 1987. The coverage of the book has been further extended to include
blockwork as well as brickwork, and a chapter dealing with movements
in masonry structures has been added.
✔️join👇
t.me/engineer03
Send comment and suggestions
@civilEngineerWork_Bot