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Non-Destructive Testing and Overlay Techniques for Flexible and Concrete Pavements, Exercises of Management Fundamentals

Jaypee University of Engineering & TechnologyManagement Fundamentals

An in-depth analysis of non-destructive testing methods for evaluating the properties of flexible pavements using dynaflect and fwd tests. It also covers various types of overlay techniques for both flexible and concrete pavements, including their functions, conditions for use, and advantages and disadvantages. Additionally, the document discusses full-depth and partial-depth repairs for concrete pavements, joint and crack sealing, cement grout undersealing and slab jacking, diamond grinding, grooving, and cold milling, and recycling of rigid pavements. Lastly, it explores the importance of subdrainage systems and their classification.

Typology: Exercises

2012/2013

Uploaded on 05/07/2013

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NON-DESTRUCTIVE TESTING AND STRUCTURAL EVALUATION OF FLEXIBLE
PAVEMENTS
(18) What properties of a flexible pavement can be determined from results of Dynaflect or
FWD tests, and how are these properties determined?
(19) How do we determine if a flexible pavement is structurally adequate by means of critical
stress analysis (as presented in the lecture and reading #16)?
TYPES OF OVERLAYS AND THEIR FUNCTIONS
(1) For each of the following types of overlay, describe (A) what it is, (B) its functions, (C) the
condition for which it is best suited, (D) the restoration work to be performed before overlaying,
and (D) its advantages and disadvantages.
(1) Asphalt overlay on asphalt pavement
(2) Asphalt overlay on PCC pavement
(3) Porous asphalt friction course on PCC pavement
(4) Unbonded PCC overlay on PCC pavement
(5) Partially bonded PCC overlay on PCC pavement
(6) Bonded PCC overlay on PCC pavement
(7) PCC overlay on asphalt pavement
(2) When is it the optimum time to resurface a pavement?
FULL-DEPTH & PARTIAL-DEPTH REPAIR OF JOINTED CONCRETE PAVEMENT
(3) What is the basic difference between a full-depth and a partial-depth repair of concrete
pavements?
(4) What types of pavement distress would require a full-depth repair and what could do with a
partial-depth repair?
(5) What are the advantages and disadvantages of a full-depth versus a partial-depth repair?
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NON-DESTRUCTIVE TESTING AND STRUCTURAL EVALUATION OF FLEXIBLE

PAVEMENTS

(18) What properties of a flexible pavement can be determined from results of Dynaflect or FWD tests, and how are these properties determined? (19) How do we determine if a flexible pavement is structurally adequate by means of critical stress analysis (as presented in the lecture and reading #16)?

TYPES OF OVERLAYS AND THEIR FUNCTIONS (1) For each of the following types of overlay, describe (A) what it is, (B) its functions, (C) the condition for which it is best suited, (D) the restoration work to be performed before overlaying, and (D) its advantages and disadvantages. (1) Asphalt overlay on asphalt pavement (2) Asphalt overlay on PCC pavement (3) Porous asphalt friction course on PCC pavement (4) Unbonded PCC overlay on PCC pavement (5) Partially bonded PCC overlay on PCC pavement (6) Bonded PCC overlay on PCC pavement (7) PCC overlay on asphalt pavement (2) When is it the optimum time to resurface a pavement? FULL-DEPTH & PARTIAL-DEPTH REPAIR OF JOINTED CONCRETE PAVEMENT (3) What is the basic difference between a full-depth and a partial-depth repair of concrete pavements? (4) What types of pavement distress would require a full-depth repair and what could do with a partial-depth repair? (5) What are the advantages and disadvantages of a full-depth versus a partial-depth repair?

(6) What should the size and the location of a full-depth patch be with respect to (A) the deteriorated concrete, and (B) existing joints. (7) Why is it important to have joints in a full-depth patch? Describe the different types of joints that can be used, and the possible advantages and disadvantages of each one. (8) Describe the main steps involved in a full-depth repair of concrete pavement. (9) Describe the main steps involved in a partial-depth repair of concrete pavement.

JOINT & CRACK SEALING (10) When is it necessary to perform joint or crack sealing on concrete and asphalt pavements? What is the main purpose of joint and crack sealing? (11) Describe the various joint of sealants and their properties. What are the possible advantages and disadvantages of one sealant versus another? (12) Describe the main steps in the proper procedures to reseal joints in concrete pavements. (13) Describe the main steps in the proper procedures to seal cracks in concrete and asphalt pavements.

CEMENT GROUT UNDERSEALING AND SLAB JACKING (14) What is the main purpose of cement grout undersealing and slab jacking? When is it desirable to perform cement grout undersealing? When is it desirable to do slab jacking as well? (15) Describe the materials that can be used as cement grout for undersealing and slab jacking. (16) Describe the main steps in the proper procedures for cement grout undersealing and slab jacking. DIAMOND GRINDING, GROOVING AND COLD MILLING (17) What are the purposes of diamond grinding, grooving and cold milling? Describe the surface characteristics resulting from each of these techniques. (18) Describe the typical equipment and procedures used in each of these three techniques. (19) Describe other types of rehabilitation work that may need to be done when each of these three techniques is used.