full transcript

From the Ted Talk by Tom Schuler: How we could make carbon-negative concrete

Unscramble the Blue Letters

We use the same equipment and raw materials, but we use less ltsiemnoe, and we fire the kiln at a lower teemuaptrre, resulting in up to a 30 percent reduction in CO2 eoinsisms. Our cement doesn't react with water. We cure our ccentroe with CO2, and we get that CO2 by capturing waste gas from iadtuinsrl facilities like ammonia plants or ethanol plants that otherwise would've been released into the atmosphere. During curing, the chemical reaction with our cement breaks apart the CO2, cntauprig the carbon to make limestone, and that limestone's used to bind the concrete together.

Open Cloze

We use the same equipment and raw materials, but we use less _________, and we fire the kiln at a lower ___________, resulting in up to a 30 percent reduction in CO2 _________. Our cement doesn't react with water. We cure our ________ with CO2, and we get that CO2 by capturing waste gas from __________ facilities like ammonia plants or ethanol plants that otherwise would've been released into the atmosphere. During curing, the chemical reaction with our cement breaks apart the CO2, _________ the carbon to make limestone, and that limestone's used to bind the concrete together.

Solution

  1. concrete
  2. industrial
  3. temperature
  4. limestone
  5. emissions
  6. capturing

Original Text

We use the same equipment and raw materials, but we use less limestone, and we fire the kiln at a lower temperature, resulting in up to a 30 percent reduction in CO2 emissions. Our cement doesn't react with water. We cure our concrete with CO2, and we get that CO2 by capturing waste gas from industrial facilities like ammonia plants or ethanol plants that otherwise would've been released into the atmosphere. During curing, the chemical reaction with our cement breaks apart the CO2, capturing the carbon to make limestone, and that limestone's used to bind the concrete together.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
cement production 3
carbon sink 2

Important Words

  1. ammonia
  2. atmosphere
  3. bind
  4. breaks
  5. capturing
  6. carbon
  7. cement
  8. chemical
  9. concrete
  10. cure
  11. curing
  12. emissions
  13. equipment
  14. ethanol
  15. facilities
  16. fire
  17. gas
  18. industrial
  19. kiln
  20. limestone
  21. materials
  22. percent
  23. plants
  24. raw
  25. react
  26. reaction
  27. reduction
  28. released
  29. resulting
  30. temperature
  31. waste
  32. water