The European Concrete Paving Association (EUPAVE)‘s guide for the design of “Jointed plain concrete pavements” provides a general overview of the basic principles of Jointed Plain Concrete Pavements (JPCPs), as well as an assessment of the influence of the aforementioned factors. In addition to many useful recommendations for the design and construction, this document deals with different aspects such as thermal movements, different types of joints, and reinforcements. Finally, this publication also contains a guide for the design of joint layouts according to the rules of art.
JPCPs are long proven to be the most common type of cast-in-place concrete pavements in the world. Specific to all concrete pavements, the phenomenon of cracking occurs when the concrete is exposed to several thermal and mechanical actions due to early-age shrinkage or expansion, temperature gradient, traffic stresses, or possible soil movements. The transverse joints of which it is constituted are essential to prevent the pavement from cracking randomly. Namely, the principle of JPCP is to intentionally locate the cracks at these joints and, in this way, control their location and width.
JPCP is suitable for a wide range of applications such as motorways, highways, main and secondary roads, agricultural roads, urban roads, squares, passages, bus lanes, industrial sites, car parks, etc….
CONTENTS of the GUIDE:
• 1. Introduction
• 2. Stresses in JPCP
2.1Non-traffic related stresses:
—Stresses in fresh concrete
—Hygrometric or plastic shrinkage
—Thermal contraction
—Temperature gradient
—Stresses in hardened concrete
—Contraction
—Temperature gradient and curling
—Thermal expansion
2.2 Traffic-related stresses
2.3 Friction with the support—Plastic sheet—Asphalt sandwich layer
• 3. Joints and geometric characteristics of JPCP
3.1 Function of the joints
3.2 Joint spacing
3.3 Types of joints:
—Transverse contraction-bending joints
—Transverse construction joints
—Transverse expansion joints
—Isolation joints
—Longitudinal bending/contraction and construction joints
—Other types of joint systems
3.4 Joint sealing materials for concrete pavements
• 4 Reinforcement of JPCP
• 5 Transition to other pavements
• 6 Joint and reinforcement layout
• 7 Conclusion
To download the publication, please click on image above, or go to:
www.eupave.eu/wp-content/uploads/EUPAVE-Guide-for-the-design-of-jointed-plain-concrete-pavements-April-2020.pdf