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Related Concept Videos

Design Example: Dimensioning of Concrete Masonry Construction01:13

Design Example: Dimensioning of Concrete Masonry Construction

For the construction of a storeroom using concrete masonry units, it's essential to align the dimensions of the structure with the actual sizes of the blocks and the intended mortar joints. On the site in question, there's a stockpile of concrete masonry blocks with a nominal size of eight by eight by sixteen inches, which are to be used in the construction of the storeroom.
The site engineer has laid out a plan for the storeroom with external dimensions of twelve feet in length and eight feet...
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.
Design Example: Managing Concrete Workability01:14

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.
To address...
Setting Time of Cement01:12

Setting Time of Cement

The setting time of cement refers to the process of cement paste transitioning from a plastic state to a solid state. This process is crucial in construction as it dictates the timeframe for concrete placement, compaction, and finishing. The onset of this solidification is termed the initial set, indicating when the paste becomes unworkable. The final set is when the paste has solidified completely, and further handling or manipulation can no longer affect its shape. The cement strength is...
Mass Concreting01:22

Mass Concreting

Mass concreting refers to the process of placing large volumes of concrete, such as in gravity dams. The heat generated during the cement hydration process and differential cooling rates within the concrete mass can lead to a temperature gradient, which can result in thermal cracks in the concrete mass.
To reduce the risk of such cracking, the concrete mix may incorporate low-heat cement and pozzolans to reduce the temperature rise. Pre-cooled angular aggregates and water-reducing admixtures...
Retarders01:19

Retarders

Retarders are chemical admixtures designed to extend the setting time, which is especially useful when there is a delay in sequential concrete pours to prevent cold joints and to achieve a cohesive structure. Retarders, when used in appropriate amounts, can also enhance the architectural appearance of exposed aggregate finishes.
The function of retarders is to delay the setting of concrete, and this effect can be measured using a penetration test. The retardation process involves adding...

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Related Experiment Video

Updated: Jun 14, 2026

Design and Construction of an Urban Runoff Research Facility
13:48

Design and Construction of an Urban Runoff Research Facility

Published on: August 8, 2014

Facility planning. A timeout on construction.

Dave Carpenter, Suzanna Hoppszallern

    Hospitals & Health Networks
    |April 10, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Hospital construction is delayed due to economic and health reform uncertainties. However, an aging population and new technologies necessitate facility upgrades for future healthcare needs.

    Related Experiment Videos

    Last Updated: Jun 14, 2026

    Design and Construction of an Urban Runoff Research Facility
    13:48

    Design and Construction of an Urban Runoff Research Facility

    Published on: August 8, 2014

    Area of Science:

    • Healthcare Administration
    • Health Facility Planning
    • Medical Technology Advancement

    Background:

    • Hospitals are postponing capital projects, including building and renovation, amid economic instability and evolving healthcare policies.
    • The current economic climate and ongoing health reform initiatives create uncertainty, leading to deferred investments in healthcare infrastructure.

    Purpose of the Study:

    • To highlight the critical need for hospital facility adaptation despite current economic and policy-related deferrals.
    • To underscore the long-term implications of delaying facility upgrades in response to demographic and technological shifts.

    Main Methods:

    • Analysis of current trends in hospital construction deferrals.
    • Review of demographic projections for aging populations.
    • Assessment of technological advancements impacting healthcare delivery and facility requirements.

    Main Results:

    • Significant delays in hospital building projects are observed.
    • An aging demographic profile presents increasing demands on healthcare services.
    • Rapid technological evolution requires adaptable and modern healthcare facilities.

    Conclusions:

    • Despite economic headwinds, hospitals must plan for future facility needs.
    • Proactive facility development is essential to accommodate an aging population and integrate new medical technologies.
    • Strategic investment in healthcare infrastructure is crucial for sustained quality of care and operational efficiency.