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Masonry Paving

Masonry Paving

The construction of masonry paving involves using materials such as bricks, stones, and concrete masonry units. These materials are chosen for their shape, color, strength, and resistance to abrasion and weathering. Masonry units can be installed dry on a thin layer of sand and a gravel base, or they can be embedded in mortar or asphalt on a concrete slab. For areas subjected to heavy vehicular loads, a rigid base layer of reinforced or unreinforced concrete is recommended. In contrast,...

Design Example: Sustainability in Concrete Building

Design Example: Sustainability in Concrete Building

As the construction industry moves towards more eco-friendly practices, concrete's adaptability and its ability to incorporate sustainable features make it a key material in the drive towards greener building solutions.
There are multiple approaches to achieve sustainability in a commercial concrete building. For instance, construct a concrete parking area under the building, utilizing pervious concrete paver blocks in open areas to facilitate rainwater collection through an underground...

Design Example: Joints in Concrete Pavements

Design Example: Joints in Concrete Pavements

Concrete pavement joints are essential for maintaining the structural integrity and longevity of pavement by controlling where and how the pavement cracks. These joints can be categorized based on their functions, such as contraction or control joints, construction joints, isolation joints, and expansion joints.
Contraction joints are typically formed by sawing a groove into the concrete shortly after it has hardened. This creates a weakened vertical plane, deliberately encouraging cracking at...

Design Example: Managing Concrete Workability

Design Example: Managing Concrete Workability

This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.

Preplaced Aggregate Concrete

Preplaced Aggregate Concrete

Preplaced aggregate concrete is ideal for construction environments that are not easily accessible. The process begins by properly wetting the gap-graded coarse aggregates to remove the dirt, then placing it in the form and compacting it. Voids are filled with a mortar mix pumped under pressure through slotted pipes. This mortar typically consists of Portland cement, pozzolan, fine aggregates, water, and a fluidizing aid. The pozzolan helps reduce bleeding and segregation while improving the...

Abrasion Resistance of Concrete

Abrasion Resistance of Concrete

Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...

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Related Experiment Video

Updated: Dec 25, 2025

Advanced Self-Healing Asphalt Reinforced by Graphene Structures: An Atomistic Insight

Advanced Self-Healing Asphalt Reinforced by Graphene Structures: An Atomistic Insight

Published on: May 31, 2022

Sustainable Designed Pavement Materials.

Yue Xiao^1,2, Sandra Erkens³, Mingliang Li¹

¹Key Laboratory of Transport Industry of Road Structure and Material, Research Institute of Highway (RIOH), Ministry of Transport, Beijing 100088, China.

Materials (Basel, Switzerland)

|April 3, 2020

Summary

This summary is machine-generated.

This special issue explores sustainable pavement materials, focusing on recycling industrial and pavement waste. It covers material modification, performance testing, defect detection, and maintenance for asphalt and concrete pavements.

Keywords:

ageing resistance modified asphalt materials pavement materials pavement surfacing recycled pavement materials recycling rejuvenator skid resistance sustainable designed pavement materials

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Area of Science:

Pavement Engineering
Materials Science
Environmental Engineering

Background:

This special issue focuses on recent advancements in environmentally-friendly pavement materials.
It addresses the critical need for sustainable solutions in civil engineering infrastructure.

Discussion:

The collection covers diverse topics including recycling industrial solid waste and pavement materials.
It also explores pavement material modification, asphalt performance characterization, and defect detection.
Maintenance strategies for both asphalt and cement concrete pavements are discussed.

Key Insights:

Integration of recycled materials into pavement design enhances sustainability.
Advanced characterization techniques improve the understanding of asphalt performance.
Effective defect detection and maintenance are crucial for pavement longevity.

Outlook:

Future research should prioritize innovative recycling technologies and life cycle assessment of pavement materials.
Development of novel, sustainable binders and aggregates is essential.
The adoption of smart technologies for pavement monitoring and maintenance will increase.