Drag each concrete-technology milestone to its year on the timeline.
Read exercise and reference answers
- End
- 1980
- Start
- 1820
- Events
- Year
- 1824
- Item
- Joseph Aspdin patents Portland cement
- Year
- 1920
- Item
- First attempts to modify concrete with polymers (PVA latex)
- Year
- 1948
- Item
- Schmidt rebound hammer developed
- Year
- 1952
- Item
- Guist et al. work on PVA-modified Portland mortar
- Year
- 1959
- Item
- First experimental polymer-concrete structure (USSR mine shafts)
- Year
- 1965
- Item
- PIC produced at Brookhaven National Laboratory
Interactive minigame on Concrete Technology History.
_Source: IGNOU Concrete Technology (ET-522) Mistral/in-session OCR._