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The Difference Between Concrete and Cement

The Difference Between Concrete and Cement


Concrete vs Cement Have you ever wondered what the difference
is between cement and concrete? Well, wonder no more.
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,
gravel, and small rocks combined with any type of cement and water. The concoction is
then allowed to dry and harden. Basically, concrete is the stone-like structure formed
after cement and other materials are mixed together. The cement is just a part of the
recipe. Cement has been used as a binder of materiel
for millenia. No one knows for sure who first came up with the idea to use a cement substance
to bind materials together to make concrete, bricks, and other building materials. The
process can be traced back to Ancient Macedonia, but was more widely popularized during the
Roman Empire. Early forms of cement used things like lime and pozzolana, a type of volcanic
ash. The Romans were able to produce massive structures like the Pantheon and the Roman
aqueducts using this formula. Currently, cement comes in two forms: Hydraulic
and Non-Hydraulic. Hydraulic cement refers to any cement that uses water to begin a chemical
reaction that hardens the mixture and, when fully formed, creates a water resistant product.
This reaction is independent of the water content of the mixture so allows for the material
to harden even underwater. This makes it a very versatile construction material. Most
all cements used today are hydraulic cements. Non-hydraulic cement uses materials that do
not harden when exposed to water. While this type is much cheaper than hydraulic cement,
the problems of long drying times, combined with the inability to use it in wet environments
makes it a poor choice in most applications. The most common type of modern cement is portland
cement (sometimes referred to as OPC for “Ordinary Portland Cement”). This type of cement is
typically made by grinding small rock-like bits of sintered limestone and aluminosilicate
minerals into a very fine powder. Its fast drying times combined with its higher compression
strength compared to other cements, makes it a great choice for use in concrete, mortar,
grout, and stucco. Concrete is a mixture of cement, water, and
aggregates. Aggregates make up approximately 60-75% of the mixture and cement and water
make up the rest. Aggregates are usually inert course materials like gravel, crushed stone,
sand, or recycled concrete. The type of aggregate selected depends on the application of the
concrete. Given that concrete starts out as a semi-liquid,
has great weather proof properties, and high strength, its applications for use in construction
are almost endless. The benefits of concrete include its durability, fire-resistance, low
maintenance, energy efficiency and environmental friendliness. In fact, concrete is the most
widely used man made material on earth. From all this, it’s easy to see why some
people would use the terms cement and concrete interchangeably. One is a main ingredient
in the other. Bonus Facts:
• “Concrete” comes from the word “Concretus” which is Latin for “compact or condensed”.
• On March 21, 2011 Ed Byrne broke 55 concrete blocks with his bare hands in 4.86 seconds,
setting a new world record. The previous record for this same amount of blocks was 17.49 seconds.
• The Three Gorges Dam in China is the largest concrete structure in the world. It contains
27.2 million cubic meters of concrete. The previous record was held by the Grand Coulee
Dam in Washington State, at 9 million cubic meters of concrete, which is enough to build
an 8 foot wide sidewalk around the equator of the Earth.

Comments (100)

  1. What about ash fault and tarmac?

  2. Me: Lets watch a few of these videos before I go to bed…… It is now 3:20 am and I have an 8 am class. great.

  3. What's a 'side walk'? Do you mean, footpath?

  4. but what is cement.

  5. Just out of curiosity, is he speaking the British slang?

  6. i think they should have made the sidewalk around the equator instead

  7. Ya down with OPC? Yah you know me!

  8. Nothing except the bonus facts surprised me.

  9. Windows CE. Windows ME. Windows NT. Proudly presenting Windows CEMENT.

  10. the background music is very calming

  11. cement when dry, add water it becomes concrete

  12. so basically theyre same thing

  13. The Romans just didn't run to The Home Depot and by their cement?

  14. You obviously have no idea how much CO2 curing cement adds to the atmosphere each year. Environmentally friendly my damned ass

  15. How thick is the sidewalk around the earth equator? We know it's 8 foot wide.

  16. easy way of this is you lay cement to get concrete

  17. Bonus fact: Jimmy Hoffa's body is preserved in concrete…….

  18. some say the concrete in the Hoover Dam is not fully cured yet, is this True?

  19. Yet concrete sidewalks in poor neighborhoods are cracked, chipped, or otherwise damaged and yet they're never repaired or replaced.

  20. It's doesn't "dry and harden"

    it "cures and then dries"

    Gotta get the nomenclature correct with these facts videos mate.

  21. The way you talk is fucking annoying

  22. The difference between concrete and cement? My old body would be better off if I spent the last 30 years working in cement. 🙂

  23. Cool, I already knew the difference.

  24. Concrete is great for hiding bodies making garden patios!

  25. I always thought concrete and cement was the same thing😐😶

  26. concrete cures it does not dry to harden.

  27. I hope lots of people watch this video. Since my dad works in the concrete industry I never made the mistake of interchanging them but it annoys me when people do

  28. The pictures of Concrete Masonry Units made me think of cinderblocks. you should do a video on the.

  29. cement is the main ingredient of any concrete

  30. The Trump's Great Wall will be made of this material, or pure rock.

  31. Fire resistance? Concrete loses its strength in a fire.

  32. Simon, you say dry but it doesn't dry, it sets, then cures. Said it a lot actually. And bonus fact: gruesome, didn't a bunch of workers fall into the concrete and stay when they built the Brooklyn bridge? or a dam…

  33. Now i want to build some stuff with concrete for no reason but this video…

  34. pornhub ebony 👔🍡🍼

  35. concrete is not environmentally friendly, who writes this crap?

  36. Cement is to concrete, as flour is to a cake.

  37. The new world record for most amount of concrete used on a single structure will be the Border Wall built on the U.S. southern border.

  38. have you ever done any videos on hempcrete

  39. Am I the only one who thought they were the same?

  40. my comment was too harsh so I deleted it

  41. Concrete now must contain iron or better grade steel fillngs to make cement stronger..
    Cement when dry is hard smooth.. but brittle whereas if mixed with sand is stronger and less brittle

  42. sorry to burst your bubble but they are the same thing

  43. I'm down with OPC, you know me!

  44. interesting subject + good music =great video. thank you

  45. next up: the difference between dough and cookies

  46. Why at .59 are you talking about cement but focusing in on a picture of plaster? Then at 1:24 you're talking about cement but zooming in on a picture of concrete? It suggests you don't really know what you're talking about, just reading facts from places like wiki pages and knitting them together with arbitrary images?

  47. Concrete is considered bad for the environment as it releases large quantities of CO2 when hardening. Geopolymers as a substitute for concrete are considered the future of building.

  48. When making concrete I like to use peanuts instead of gravel — also, curry gives it a nice dark yellow colour.

  49. There's cement in concrete, not concrete in cement.

  50. 3:05 apparently we also need a video explaining the difference between elbows and hands.

  51. could have ended the video in 30 seconds

  52. I looking here to see why it takes 4 minutes to explain what I've explained in 10 seconds…

  53. I should delevope and sell an after shave that smells like fresh concrete…

  54. so basically concrete makes things, cement fixes the concrete

  55. for those wondering how deep the sidewalk would be, it's .3025 feet, or approximately 1/3 of a meter:
    24,874(equator in miles)*5280=131,334,720 feet
    131,334,720*8=1,050,677,760 feet^2
    9,000,000 meters^3=317,832,000.5 feet^3
    317,832,000.5/1,050,677,760=.3025 feet which, due to slight rounding was most likely originally set as 1/3 of a meter

  56. Do it in concrete. It stays hard longer!

  57. The difference between concrete and cement is something you just learned today? LOL Here's a clue: a concrete truck (aka a cement mixer) is a large egg-shaped vehicle rotatung along its long axis to keep the concrete mixture of (usually) Portland cement,water,aggregate,additives to control set from setting up (during which the cement component would crystallize around the aggregate). A cement truck (the real thing) is a cigar-shaped vehicle with V's (funnels, usually three of them) on the underside to drain the powder for delivery to a silo. The truck could be used for any powder, and ones like it often are.

    Just today? You should get out more <L>

  58. number of blocks not amount

  59. Macedonia is Greek, not to be confused with the modern day nation which bears no ties with any ancient city state.

  60. Still don't know.

  61. Hey Simon, awesome job on the vids. Was wondering if you did (could do) a Today I Found Out about why bugs are attracted to light?

  62. Obvious difference. Cement is one of Jenna Marbles dogs.
    Not the dead one.

  63. Thank you! The video was information-packed and was really helpful.

  64. Pretty sure Fred Flintstone invented concrete.

  65. I learnt this one 30 years ago at TAFE ( Trade |School) cement is an ingredient concrete is sand, steel and cement . Calling concrete, cement is like calling a cake an egg cause it's in a cake.

  66. I watched a video today about concrete and enjoyed it.

  67. I’m glad you guys always give us concrete evidence.

  68. Did anyone else think of that guy from insane pools when Simon said Portland cement?

  69. https://youtu.be/dP4fbWgEq8M

  70. I've been to that damn dam. 🙂

  71. Guys, girls I love all of your stuff…cool to see some early stuff

  72. Cement is glue. If you look on many different types of "glues" in the store you will find a lot of them are also labeled as "cement"

    Concrete is a mixture of glue (water activated {processed rock based} … Portland cement or similar) , sand and small rocks.

    Mortar (used in gluing bricks, cinder blocks or large stones together) is a mixture of glue (usually Portland cement) and sand.

  73. have you done dirt vs. soil yet?

  74. 2:40 … Environmental friendliness? Some people disagree. In 2012, "the cement industry used … one-quarter of one percent of total U.S. energy … [and] it is the most energy-intensive of all manufacturing industries." It takes a lot of heat to make Portland Cement.

  75. The man who broke the concrete blocks was able to achieve this feat was because concrete has a low flexural strength as opposed to its high compressive strength. His point of impact was between the two blocks which the piece of concrete were set upon. This is the reason why rebar (reinforcing steel bars) are used with bridge-building, etc.

  76. Cement is a powder that you mix with water and sand to make concrete. People often call concrete cement. They are wrong.

  77. How does cement not harden in transport, storage etc? Is there a time limit on transportation before it hardens?

  78. Very informative video. Clear and to the point. Thank you very much. I learned a lot from the vide o.

  79. I lay blosks and trust me. Breaking them with your hands is no super power, especially since they're made flawed

  80. The ancients used sea water for their mix so it would get harder over time instead of deteriorating like the buildings of today.

  81. A man broke bricks specially stacked, bricks dont fight back.

  82. I like the dense subject, it reminds me of most favored personal qualities…
    My teachers always told be I wouldnt get any smarter so I turned to self reflection.

  83. Another great video up until the block breaking bit. Honestly don't you all know it's a trick? Ask the guy to do it without all the little slivers of wood between the block. To all those knuckleheads that think breaking blocks or snapping balsa wood with the grain just remember that blocks don't hit back and I'm pretty sure my sister could to the same as you.

  84. Concrete does not "dry". It "cures" through a process called "hydration" whereby water is bound up chemically with the cement. This is why concrete is so fire resistant. Hydration can only be reversed with heat, and it requires an enormous amount of energy to do so.

    But at least you got the difference between "concrete" and "cement" right, lol….

  85. Want to add a second story to your library of obscure knowledge? Watch this video that reveals how the maximum occupancy of a building is calculated:
    https://www.youtube.com/watch?v=mcVyC-1DfTg

  86. Bare elbows 😉

    Love the vids

  87. Hi why do we use aggregates on Concrete and what other use

  88. Hi my name is Rhonda Pickett I need you both I a. having. really hard time in life experenocing death on a daily basis there are three females that followed me from Michigan. to Mississippi and they have been causing me problems ever since forcefully entering my life and foing things yo me against my will these people started doing things to me eith. a device from the roof and cemented my whole body a d included the whoke earth I have alotnofnpeople on this and I thought they were leaving soon as I see they have other plansnpeople of such lie internet you wouldn't think that this could be possible however zi need your help I am dying and my body us cemented and voncrated with the whole earth and then inside livibgnlife to the fullest surviving off my period gas drained the lifenout of me often running around in bikinis and nadty shit forcing. and enticing gay behavior upon me I am hetrosexua yet you nadty ass bitch wiring shut up to me it the most disgusting life in the world.

    I have a don named Mario D Rich Jr they are sm but there are alot of them bern after them toonlije a pack of wolves thete are do many and no telling whete they are and I am asking that you take them under your wing too and join my care team and help take care of them? I would greatly appreciate it hey Dave me then the world Imlove you so much I swear

    worlds wiring

    S nose now whole body
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    n ankle yo ankle v in the back now whole body
    Tune like you are toning a radio

    get they asses for me will you

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    select 10 room 274

  89. My whole body is fucked up did zi mention the device on the roof?

  90. People that say cement in place of concerete make me SMH.

  91. You should add that because our use of concrete the world is literally running out of sand, driving the price higher and higher as demand increases and supply dwindles.

  92. consider all your videos liked

  93. In my limited experience (I live in southern CA), there are three relevant terms in common usage: Cement, mortar and concrete. Cement is variously used to refer to the material that serves as a binder and also to mortar and concrete although this usage is informal and imprecise. Mortar contains only sand and cement while concrete contains cement, sand and gravel. I have never heard concrete referred to as mortar or visa versa.

  94. the thumbnail reminds me of bob the builder

  95. As a concrete worker. It's really painful when someone says cement when they mean concrete

  96. You forgot to mentpon the Itaipu dam between Payaguay Brazil and Argentina that used 12.3 million cubicmeters of concrete to build the dam.

  97. Cement is flour concrete is bread

  98. I like cement better and alot lot of people like using cement blocks you can get alot done with cement and both materials will crack over time it doesn't matter how thick you make something it always cracks

    Specially with tree's around

  99. I add crushed limestone to my cement

  100. Fun fact….concrete and other masonry building systems are a huge factor in climate change. Next is our black roads. These products absorbs heat during the day and dissipate it at night raising night temperatures. This has a huge impact on overall temperatures.

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