QuestionsQuestions (DPWH DEPARTMENT ORDER NO. 06, S. 2011)
It observed that the application of asphalt sealant on the transverse contraction/weakened plane, construction, and longitudinal joints of concrete pavements was not being properly undertaken.
Insufficient asphalt sealant affects the structural integrity and the imperviousness to water of the concrete pavement and its underlying courses.
Excessive application may affect the pavement riding surface by causing bumpiness and loss of smoothness.
The transverse contraction/weakened plane joints, construction joints, and longitudinal joints.
All heads of the concerned project implementing offices of the DPWH are directed to strictly observe proper application.
It cites Subsection 311.3.17 (Sealing Joints) of the DPWH Standard Specifications.
It means selecting the correct penetration grade of asphalt sealant as required by Subsection 311.3.17 (Sealing Joints) for the proper sealing of the concrete joints.
It must be ensured that the surface is free from any excess asphalt sealant and concrete laitance prior to opening to traffic.
Concrete paving works implemented by the Department either by contract or by administration.
The Order takes effect immediately.
It mandates strict observance of proper application of asphalt sealant.
It was signed by Rogelio L. Singson as Secretary.
The concrete pavement and its underlying courses may lose structural integrity and imperviousness to water.
It may decrease smoothness and increase bumpiness of the riding surface.
It links correct/incorrect sealant application to (1) structural integrity, (2) water imperviousness, and (3) riding surface smoothness/bumpiness.