- published: 10 Jun 2016
- views: 66320
A cement is a binder, a substance that sets and hardens and can bind other materials together. The word "cement" can be traced back to the Roman term opus caementicium, used to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick supplements that were added to the burnt lime, to obtain a hydraulic binder, were later referred to as cementum, cimentum, cäment, and cement.
Cements used in construction can be characterized as being either hydraulic or non-hydraulic, depending upon the ability of the cement to set in the presence of water (see hydraulic and non-hydraulic lime plaster).
Non-hydraulic cement will not set in wet conditions or underwater; rather, it sets as it dries and reacts with carbon dioxide in the air. It can be attacked by some aggressive chemicals after setting.
Hydraulic cements (e.g., Portland cement) set and become adhesive due to a chemical reaction between the dry ingredients and water. The chemical reaction results in mineral hydrates that are not very water-soluble and so are quite durable in water and safe from chemical attack. This allows setting in wet condition or underwater and further protects the hardened material from chemical attack. The chemical process for hydraulic cement found by ancient Romans used volcanic ash (activated aluminium silicates) with lime (calcium oxide).
Watch the full episode: https://www.youtube.com/watch?v=bmMb7EmfvyE Host Kevin O'Connor explains the differences between three popular masonry materials. (See steps below.) Click here to SUBSCRIBE to the official This Old House YouTube channel: http://www.youtube.com/subscription_center?add_user=thisoldhouse Steps for Understanding Concrete, Cement, and Mortar: 1. Portland cement is a fine gray powder that hardens when mixed with water. It's seldom used by itself but is an important ingredient in many other masonry products. 2. Concrete is a mixture of portland cement, sand, and an aggregate, such as gravel or coarse stone. 3. Concrete is mixed with water, then poured or pumped to create foundation walls, footings, piers, slab floors, driveways, steps, and sidewalks. 4. Once fully cured...
For more information: http://www.7activestudio.com info@7activestudio.com http://www.7activemedical.com/ info@7activemedical.com http://www.sciencetuts.com/ 7activestudio@gmail.com Contact: +91- 9700061777, 040-64501777 / 65864777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. MANUFACURE OF PORTLAND CEMENT:Raw Materials: T...
Cement making process. I don't owe any copyrights for this video. I just uploaded it because there was no good video about cement making process at that time.
https://www.roccosonlinestore.com (Rocco Apparel) http://bit.ly/2dQ7EdK (Rocker Mini BMX) https://electricsmartboard.com (Hoverboards) Need Scooter Parts: Use code "PIZZA" for 10% OFF your entire order at https://www.thevaultproscooters.com Follow Rocco on: Instagram: http://bit.ly/1Ub2OXR Instagram: http://bit.ly/2eqErd1 Facebook: http://on.fb.me/1Ub2UyF Twitter: http://bit.ly/1WuAoXe Snapchat: roccopiazza1 Follow Rocco’s sister Emma on: YouTube: http://bit.ly/24ZoHOw Instagram: http://bit.ly/1RRVRKO Facebook: http://on.fb.me/24d6Ovg Snapchat: epic Follow Rebecca a.ka. "The Nanny" on: Instagram: http://bit.ly/1UkVRn0 Twitter: http://bit.ly/1QYRRDt Snapchat: beccatrujillo21 Business email: hollypiazza@sbcglobal.net Send Fan Mail to: RoccoPiazzaVlogs 750 S. Lincoln Ave #104-473 Co...
Here we mix mortar to a ratio of 4 sand to 1 cement by volume (never by weight) using a plastic mixing tray and a shovel. A plasticiser is also added to the gauging water as this gives the mortar a creamier mix and makes it much easier to work with. Brought to you by http://www.ultimatehandyman.co.uk
Subscribe us for latest videos. If you have any question feel free to post on comment box. This is the fifth part of Introduction of cement (concrete making materials) in Hindi. This video consist information about manufacture of cement. For handwritten notes click on the link. http://concretemakingmaterials.blogspot.in/
→Subscribe for new videos every day! http://bit.ly/todayifoundoutsubscribe →Why Do Superheroes Wear Their Underwear on the Outside?: http://bit.ly/1Ow7J0K Never run out of things to say at the water cooler with TodayIFoundOut! Brand new videos 7 days a week! More from Today I Found Out: Why Port and Starboard Indicate the Left and Right Side of a Ship: https://www.youtube.com/watch?v=SAjcJDoz9wM Why Superheroes Wear Their Underwear On The Outside: https://www.youtube.com/watch?v=h8Q699A6egU How Long You Could Survive in Space Without a Space Suit: https://www.youtube.com/watch?v=Q26aM-ZJFO8 In this video: In general terms, the word cement refers to any kind of binder that tightly holds other materials together. Concrete, on the other hand, is a mixture of materials like sand, grav...
How to Remove Cement sidewalk Order Daily Hustle Merchandise at www.chantsdailyhustle.com Can send any mail to: Chants Daily Hustle P.O. Box 206 Jackson,Mn 56143 Check out Instagram - https://www.instagram.com/chantsingvongsa/ Snapchat- @chantsingvongsa -Camera Gear Currently Used (Sony Set Up) Camera Body- http://amzn.to/2j1dZnL Camera Len- http://amzn.to/2iEs5O5 Mic- http://amzn.to/2iEBXXR Gorilla Pod- http://amzn.to/2jsb2zz -Camera Gear Perviously Used (Canon Set Up) Camera Body- http://amzn.to/2js5HIe Cheap Camera Len- http://amzn.to/2jrWX53 Expensive Len- http://amzn.to/2jR4Rlh Mic- http://amzn.to/2jp3KNg Gorilla Pod- http://amzn.to/2jsb2zz Drone- http://amzn.to/2jxuDhW Bluetooth Thing I wear around my neck - http://amzn.to/2jp1hm2 Refective Jacket I wear- http://am...
Troweling sidewalk , getting it ready for the brooooom.
Watch the full episode: https://www.youtube.com/watch?v=bmMb7EmfvyE Host Kevin O'Connor explains the differences between three popular masonry materials. (See steps below.) Click here to SUBSCRIBE to the official This Old House YouTube channel: http://www.youtube.com/subscription_center?add_user=thisoldhouse Steps for Understanding Concrete, Cement, and Mortar: 1. Portland cement is a fine gray powder that hardens when mixed with water. It's seldom used by itself but is an important ingredient in many other masonry products. 2. Concrete is a mixture of portland cement, sand, and an aggregate, such as gravel or coarse stone. 3. Concrete is mixed with water, then poured or pumped to create foundation walls, footings, piers, slab floors, driveways, steps, and sidewalks. 4. Once fully cured...
For more information: http://www.7activestudio.com info@7activestudio.com http://www.7activemedical.com/ info@7activemedical.com http://www.sciencetuts.com/ 7activestudio@gmail.com Contact: +91- 9700061777, 040-64501777 / 65864777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. MANUFACURE OF PORTLAND CEMENT:Raw Materials: T...
Cement making process. I don't owe any copyrights for this video. I just uploaded it because there was no good video about cement making process at that time.
https://www.roccosonlinestore.com (Rocco Apparel) http://bit.ly/2dQ7EdK (Rocker Mini BMX) https://electricsmartboard.com (Hoverboards) Need Scooter Parts: Use code "PIZZA" for 10% OFF your entire order at https://www.thevaultproscooters.com Follow Rocco on: Instagram: http://bit.ly/1Ub2OXR Instagram: http://bit.ly/2eqErd1 Facebook: http://on.fb.me/1Ub2UyF Twitter: http://bit.ly/1WuAoXe Snapchat: roccopiazza1 Follow Rocco’s sister Emma on: YouTube: http://bit.ly/24ZoHOw Instagram: http://bit.ly/1RRVRKO Facebook: http://on.fb.me/24d6Ovg Snapchat: epic Follow Rebecca a.ka. "The Nanny" on: Instagram: http://bit.ly/1UkVRn0 Twitter: http://bit.ly/1QYRRDt Snapchat: beccatrujillo21 Business email: hollypiazza@sbcglobal.net Send Fan Mail to: RoccoPiazzaVlogs 750 S. Lincoln Ave #104-473 Co...
Here we mix mortar to a ratio of 4 sand to 1 cement by volume (never by weight) using a plastic mixing tray and a shovel. A plasticiser is also added to the gauging water as this gives the mortar a creamier mix and makes it much easier to work with. Brought to you by http://www.ultimatehandyman.co.uk
Subscribe us for latest videos. If you have any question feel free to post on comment box. This is the fifth part of Introduction of cement (concrete making materials) in Hindi. This video consist information about manufacture of cement. For handwritten notes click on the link. http://concretemakingmaterials.blogspot.in/
→Subscribe for new videos every day! http://bit.ly/todayifoundoutsubscribe →Why Do Superheroes Wear Their Underwear on the Outside?: http://bit.ly/1Ow7J0K Never run out of things to say at the water cooler with TodayIFoundOut! Brand new videos 7 days a week! More from Today I Found Out: Why Port and Starboard Indicate the Left and Right Side of a Ship: https://www.youtube.com/watch?v=SAjcJDoz9wM Why Superheroes Wear Their Underwear On The Outside: https://www.youtube.com/watch?v=h8Q699A6egU How Long You Could Survive in Space Without a Space Suit: https://www.youtube.com/watch?v=Q26aM-ZJFO8 In this video: In general terms, the word cement refers to any kind of binder that tightly holds other materials together. Concrete, on the other hand, is a mixture of materials like sand, grav...
How to Remove Cement sidewalk Order Daily Hustle Merchandise at www.chantsdailyhustle.com Can send any mail to: Chants Daily Hustle P.O. Box 206 Jackson,Mn 56143 Check out Instagram - https://www.instagram.com/chantsingvongsa/ Snapchat- @chantsingvongsa -Camera Gear Currently Used (Sony Set Up) Camera Body- http://amzn.to/2j1dZnL Camera Len- http://amzn.to/2iEs5O5 Mic- http://amzn.to/2iEBXXR Gorilla Pod- http://amzn.to/2jsb2zz -Camera Gear Perviously Used (Canon Set Up) Camera Body- http://amzn.to/2js5HIe Cheap Camera Len- http://amzn.to/2jrWX53 Expensive Len- http://amzn.to/2jR4Rlh Mic- http://amzn.to/2jp3KNg Gorilla Pod- http://amzn.to/2jsb2zz Drone- http://amzn.to/2jxuDhW Bluetooth Thing I wear around my neck - http://amzn.to/2jp1hm2 Refective Jacket I wear- http://am...
Troweling sidewalk , getting it ready for the brooooom.
The Cement Garden : http://kuntul.us/....«»+_+ The Cement Garden FuLL'MoVie'FrEe' The Cement Garden FuLL'MoVie'FrEe' The Cement Garden FuLL'MoVie'FrEe'
It's funny how i watch the day go by, I'm sittin watching tv, Talk Shows High, Theres banging on
the walls, My head aches, I'm drinking out the world that i hate.
I had a big car, new clothes, Everything, I had a watch engraved in Switzerland, Today i saw her
buying a magazine, It's time to get myself some Therapy.
How can i stop this, How can i stop this, How can i stop this disease?!?
She's got a new dress on
(Im in Cement)
Sits by her radio
(Im in Cement)
She's got those x-ray eyes
(Im in cement)
Don't know which way to go.
It's funny but i dream for yesterday, I'm blistered by the burns that life has made, I'm staring
out behind the windowshade, I see her face accross the street again.
Im in quick sand sinkin in again, I've got concrete shoes and i can't swim.
How can i stop this, How can i stop this, How can i stop this disease?!?
She's got a new dress on,
She's got a new dress on.
I don't know what to do, but i know that i must pull through, i can't keep watching you.
How can i stop this, How can i stop this, How can i stop this disease?!?
She's got a new dress on