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Related Concept Videos

Design Example: Sustainability in Concrete Building01:26

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 cistern.
Aggregates Classification01:29

Aggregates Classification

Aggregate classification is generally based on its size, petrographic characteristics, weight, and source. Size classification ranges from coarse to fine aggregates, defined by the size of the particles. Coarse aggregates are particles that do not pass through ASTM sieve No. 4, and aggregates that pass through the sieve are fine aggregates.
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
Preplaced Aggregate Concrete01:29

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...
Masonry Cavity Walls01:26

Masonry Cavity Walls

Cavity walls feature a hollow space between the outer and inner wythes, connected only by corrosion-resistant metal ties. When water seeps through the outer wythe, it descends within this cavity, intercepted by flashing and eventually exiting through weep holes. To enhance moisture resistance, the inner wythe's cavity side often receives damp-proofing, doubling as an air barrier. The cavity can also house insulation to mitigate heat transfer.
Maintaining a clean cavity during construction is...
Cavity Drainage and Flashings in Masonry walls01:20

Cavity Drainage and Flashings in Masonry walls

Typically, a cavity wall consists of two wythes separated by a gap of at least 2 inches, which may contain insulation while still maintaining a minimum clear space of 1 inch to facilitate adequate drainage. Advanced methods like the insertion of a continuous drainage mat can further reduce this space while ensuring effective moisture expulsion.
Weep holes, strategically placed at the base of the cavity, are critical for draining accumulated water. These openings are created by leaving head...
Workability of Concrete01:25

Workability of Concrete

The workability of concrete is a crucial property that affects its handling, placing, and finishing during construction. It describes the ease with which concrete can be mixed, placed, compacted, and finished. Workability is primarily concerned with the concrete's movement and its ability to resist internal friction and external resistance from molds and reinforcements during the application process.
Concrete's workability is determined by its resistance to internal forces that arise when...

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Related Experiment Video

Updated: Jun 6, 2026

The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties
09:06

The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties

Published on: June 7, 2020

Construction waste rises up the agenda.

David Moon1

  • 1Waste & Resources Action Programme.

Health Estate
|November 10, 2010
PubMed
Summary

NHS Trusts can achieve significant cost savings by minimizing construction waste during building maintenance and new facility development. A new guide from WRAP (Waste & Resources Action Programme) outlines strategies for efficient resource use.

Area of Science:

  • Healthcare Infrastructure Management
  • Sustainable Construction Practices
  • Waste Reduction Strategies

Background:

  • Maintaining and developing NHS facilities is essential but costly, facing financial scrutiny.
  • The Waste & Resources Action Programme (WRAP) supports waste reduction and resource efficiency.
  • NHS Trusts are key stakeholders in managing infrastructure costs.

Purpose of the Study:

  • To highlight the role of NHS Trusts in cost savings through waste minimization.
  • To present strategies for reducing construction waste in the NHS.
  • To inform NHS Trusts about sustainable resource management in facility development.

Main Methods:

  • Review of current NHS building maintenance and construction practices.
  • Analysis of waste generation in healthcare facility projects.

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Assessment of Waste-Derived Biochars on the Health and Biological Activity of Soil
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Assessment of Waste-Derived Biochars on the Health and Biological Activity of Soil

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Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste
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Scalable Step-by-Step Approach of Sustainable Bioplastic Production from Food Waste

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Related Experiment Videos

Last Updated: Jun 6, 2026

The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties
09:06

The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties

Published on: June 7, 2020

Assessment of Waste-Derived Biochars on the Health and Biological Activity of Soil
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Assessment of Waste-Derived Biochars on the Health and Biological Activity of Soil

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  • Guidance development based on WRAP's expertise in waste and resource management.

    • Main Results:

    • Minimizing construction waste offers substantial cost-saving opportunities for NHS Trusts.
    • Implementing efficient resource use directly impacts project budgets.
    • Proactive waste management is crucial for financial health of NHS infrastructure projects.

    Conclusions:

    • NHS Trusts play a pivotal role in achieving financial efficiencies via construction waste reduction.
    • Adoption of WRAP's guidance can lead to significant cost savings and improved resource management.
    • Sustainable practices in healthcare construction are vital for the NHS infrastructure.