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
- concrete
- industrial
- temperature
- limestone
- emissions
- 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
- ammonia
- atmosphere
- bind
- breaks
- capturing
- carbon
- cement
- chemical
- concrete
- cure
- curing
- emissions
- equipment
- ethanol
- facilities
- fire
- gas
- industrial
- kiln
- limestone
- materials
- percent
- plants
- raw
- react
- reaction
- reduction
- released
- resulting
- temperature
- waste
- water