Difference Between Cement Plastering and Rendering

Plaster and render refer to mortar coatings which give a protection to blockwork. The coatings provided on interior walls are named plaster, whereas the coatings on outside walls are termed render.

The plaster and render is differentiated with the uniformity of the mortar. Render usually consists of more cement as compared to plaster so that it becomes weather resistant. It is its primary function. It’s essential to render a building if it is developed with landcrete or mud blocks as when these blocks are uncovered to water for prolonged period, these can be broadened as well as turned out to be soft and cracked.

All exterior walls must be protected with render. The sides of the building, which have to combat with the scorching weather, should be covered with a heavier mix. The primary role of the plaster is to create the inside walls smooth and easily washable as well as make it good looking and decorate (paint or wallpaper) over. Plaster or render contains cement, sand, water and occasionally lime is included with the mix. Sharp coarse sands are most suitable for render, but this type of sand can make the mortar complicated to function wall. The sand applied for plaster must be well graded and less coarse as compared to the sand applied for render.‪

Because of diverse locations of utilizations of plasterwork, the percentage of material component for plaster and render may differ. As for example:

(i) Cement plaster 

Undercoat- cement:lime:sand (by volume) = 1:4:16

Finishing coat – cement:lime:sand = 1:12:30

(ii) Cement render 

Undercoat- cement:lime:sand (by volume) = 1:2:6

Finishing coat – cement:lime:sand = 1:3:6

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Published By

Rajib Dey

www.constructioncost.co

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How to restore the existing service entrance with PMC 780 concrete stamping pads

This construction video is recorded for restoring the existent service entrance through a stamped concrete walkway with PMC 780.

The video focuses on the following part-by-part processes:

• Site Work
• Concrete Pour
• How to use the Color Hardener and Release
• Apply texturing to the Concrete with PMC-780 Stamps
• Finishing Touches
• Get the Finished Concrete Walkway

PMC® rubbers are very user-friendly and have exceptional wear resistance power. These are cured with minimum shrinkage. These are cost-effective, represent unique detail. PMC® rubbers are best fit for developing casting of concrete, gypsum and wax.

PMC-780 refers to a superior quality urethane rubber that offers outstanding stability, lastingness and erosion resistance. These solid rubbers contain excellent tear and tensile strength, impact and abrasion resistance. These can be used for producing concrete stamping pads, mold liners and molds for casting concrete.

Benefits of Concreting Stamping:

• Unlimited design options
• Apply different types of shapes like brick, stone, wood and more
• Stamp concrete indoors or out
• Reduce labor & material cost
• Finish any project in the quickest possible time
• Longevity: Concrete has a long lasting life and it needs little maintenance

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Published By

Rajib Dey

www.constructioncost.co

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BSF admixtures help to maintain sustainability in concrete and cement

Both concrete and cement play an important role for several construction projects. Concrete is primarily formed with cement, water and grains of stone. Cement is developed by mixing calcium silicate with portions of aluminum and iron compounds.

The following construction video explains the total procedure for creating these materials.

This animated construction video also focuses on the functionality of concrete superplasticizer Glenium to make the best use of these materials for making concrete more flexible, long-lasting and resilient.

BASF Glenium superplasticizers enhance the structural properties of concrete as well as its eco-friendliness.

By applying BASF's concrete admixture Glenium, up to 50 percent of the cement clinker is substitued with other materials. These materials consist of fly ash, a byproduct of coal-fueled electric power plants, or blast furnace slag obtained throughout steel production and recycled for these purposes. Thus, Glenium admixtures facilitates savings of up to 60 percent carbon in concrete production. So Glenium is very vital element to reduce carbon emissions in cement production.

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Published By

Rajib Dey

www.constructioncost.co

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Benefits of externally bonded reinforcement toward concrete & masonry

If concrete or masonry structures contain inadequate strength, externally bonded reinforcement provides good solution. Externally bonded fiber-reinforced polymer (FRP) composite systems is considered as the greatest substitute to traditional methods for solidification and retrofit. But the epoxy matrix of FRP systems is unstable to failure in high-temperature or aggressive surroundings.

Fabric-reinforced cementitious matrix (FRCM) systems are gaining popularity as a feasible substitute to FRP systems. FRCM systems are originated as a progression of FRP where the epoxy matrix is substituted with a cementitious matrix. With the cementitious matrix, FRCM systems can function efficiently under high temperatures, humidity, and ultraviolet radiation as compared to FRP systems. The cementitious matrix can significantly enhance the stability of the strengthening system in moist and chemically aggressive atmospheres, or in applications where vapor conformity of the strengthening system is necessary.

Properties of FRCM

FRCM systems are externally bonded strengthening systems which contain a fabric mesh implanted in a cementitious matrix. Identical to FRP systems, the fabric in an FRCM system bears the pressures transmitted from the concrete or masonry substrate via the cementitious matrix. The fabric usually includes meshes formed with carbon, alkali-resistant glass, basalt, or polymeric fibers (like polyparaphenylene benzobisoxazole, PBO), or hybrid systems.

The cementitious matrix applied in FRCM is non-shrinkable and executable in order that it can be smoothly shoveled as well as pervade the fabric mesh openings. Both hydraulic and non-hydraulic cements are applied. Sands graded superiorly (grain size less than 0.02 inch) can make the functionality of the fresh mix better as well as the saturation of the fabric mesh. The water-to-mortar ratio by weight generally varies from 15% and 25%. The mortar mix contains chopped fibers to lessen cracking that may occur due to compression in plastic. Organic compounds are also applied to manage the hardening rate and the functionality of the fresh mix, to enhance the bond to the fabric mesh, and to improve the mechanical properties. The fiber content is usually restricted to below 5% by weight of cement to achieve a fireproof matrix.

To read the complete article, click here.

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Published By

Rajib Dey

www.constructioncost.co

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How to determine Shear Force & Bending Moment Equations for a beam

This informative construction video briefly explains how to determine equation for shear force & bending moment as well as how to sketchup their diagrams.

The shear force at a segment of a beam denotes the force that shears off the section and is procured like the algebraic sum of all forces together with the reactions functioning normal to the axis of the beam both to the left or right of the beam. As the beam is a inflexible structure, the force will be transmitted internally all along the beam. This internal force is called shear force.

Shear and bending moment diagrams belong to analytical tools applied in combination with structural analysis to facilitate accomplishing structural design by finding out the value of shear force and bending moment at a specified point of a structural element like a beam. These diagrams are used to define the type, size, and material of a structural member efficiently in a structure with the purpose of supporting a specified set of loads devoid of structural failure. Shear and moment diagrams are also useful to find out the deflection of a beam easily by applying either the moment area method or the conjugate beam method.

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Published By

Rajib Dey

www.constructioncost.co

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Importance of Augmented Reality (AR) Technology in Construction

With the emergence of Augmented reality (AR) technology, the process for designing and constructing a building is changed significantly.

AR is the latest technology that forms a compound view of real world atmospheres, overlaying an image produced through the user’s own real world view.

If AR applications are integrated with a smart device or wearable technology, it can generate a real scale 3D model of a building or particular room combined with your environments.

AR also facilitates the construction teams and consultants to significantly enhance the understanding of design discrepancies, outstanding tasks, safety issues, imperfect works and numerous other site-related variables.

If virtual reality allows the designers to visualize the appearance of a structure on a screen, AR leverages the real world to facilitate the user to perfectly preview how all the diverse areas of a plan organized together.

So, it becomes easier to detect conflict in design before the development of actual construction. Huge time is saved and risk is minimized. Therefore, the profitability of project is increased.

All the activities associated with construction site, which range from accomplishing and appraising a defect as well as notifying everyone of a safety issue, can be recorded and carried in a real world setting.

AR not only enhances the usability of site-related data, but also facilitate a uninterrupted user interaction and collaborative efforts in real-time.

As AR and GPS technology become superior, go into a construction site every day and being guided to the location of your outstanding tasks become possible.

Construction management platforms offer a superior level of collaboration amid all project stakeholders and this type of real time control can accomplish tasks more speedily.

By linking defects management functionality with AR elements, the process for recording, allocating and handling defects will be changed significantly.

With AR, a user can formulate and allocate real time data at the time of walking around a construction site, and generate tags noticeable to other users.

One can walk into a room through smart glasses and view all of the outstanding issues associated with that room by viewing AR tags. This will significantly improve the project quality and also the consciousness of possible safety concerns.

To read the complete article, click here.

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Published By

Rajib Dey

www.constructioncost.co

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Building Construction: Principles, Materials and Systems” – An exclusive construction book for civil engineering students

Medan Mehta, Walter Scarborough and Diane Armpriest have published an exclusive construction book alias Building Construction: Principles, Materials and Systems. The book is available in paperback version.

Madan Mehta, B.Arch., M.Bdg.Sc., Ph.D., P.E., is a faculty member at the School of Architecture, University of Texas at Arlington. Walter R. Scarborough, CSI, SCIP, AIA, is Vice President and Regional Manager for Hall Building Information Group, LLC. Diane Armpriest, M.L.A., M. Arch., is Associate Professor and Chair, Faculty of Architecture and Interior Design, College of Art and Architecture, University of Idaho.

The science of building construction and design is changing in a rapid pace than earlier stage. The second edition of this outstanding text is created on the basis of the earlier version. It combines the most recent updates available, highlights numerous new pieces of artwork and is available with full color. The book is published by an author team having several years of experience in architecture, building construction, engineering and teaching, Building Construction: Principles, Materials and Systems 2nd Edition is a wide-ranging and completely demonstrated introduction to construction methods and materials.

Primarily this construction book focuses on principles of construction in part one and materials and systems of construction in part two. This organization promotes a clear-cut understanding of general concepts prior to advancing to more complicated concepts. Point up to a visual approach to learning, it comprises over 1,400 original examples and an additional large trim size (9” x 12”) that offers an open and inviting layout for engineering students.

Buy Now

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Published By

Rajib Dey

www.constructioncost.co

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