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2. Hydrophobic concrete - Wikipedia

   en.wikipedia.org/wiki/Hydrophobic_concrete

   Hydrophobic concrete can be used in the same applications as regular concrete, most often where regular concrete is dangerous to repair or the cost of structural damage would be highly detrimental. Tunnel work is a major application of hydrophobic concrete as underground repairs are difficult and costly. [ 8 ]

3. Self-healing concrete - Wikipedia

   en.wikipedia.org/wiki/Self-healing_concrete

   The ancient Romans used a type of lime mortar that has been found to be self-healing. [8] The stratlingite crystals form along the interfacial zones of Roman concrete, binding the aggregate and mortar together and this process continued even after 2000 years and it was discovered by the geologist Marie Jackson and her colleagues in 2014.

4. Non-shrink grout - Wikipedia

   en.wikipedia.org/wiki/Non-shrink_grout

   Non-shrink grout is a hydraulic cement grout that, when hardened under stipulated test conditions, does not shrink, so its final volume is greater than or equal to the original installed volume. It is often used as a transfer medium between load-bearing members.

5. Pervious concrete - Wikipedia

   en.wikipedia.org/wiki/Pervious_concrete

   A pervious concrete street in 2005. Pervious concrete (also called porous concrete, permeable concrete, no fines concrete and porous pavement) is a special type of concrete with a high porosity used for concrete flatwork applications that allows water from precipitation and other sources to pass directly through, thereby reducing the runoff from a site and allowing groundwater recharge.

6. Calcium silicate hydrate - Wikipedia

   en.wikipedia.org/wiki/Calcium_silicate_hydrate

   When water is added to cement, each of the compounds undergoes hydration and contributes to the final state of the concrete. [2] Only calcium silicates contribute to the strength. Tricalcium silicate is responsible for most of the early strength (first 7 days). [3] Dicalcium silicate, which reacts more slowly, only contributes to late strength.

7. Here's What Happened After I Tired the Viral "Hurkle-Durkle ...

   www.aol.com/heres-happened-tired-viral-hurkle...

   My dogs, who had happily piled back into bed with me, weren’t having any trouble at all hurkle-durkling. They snuggled up against my legs and snoozed off. Maybe this wasn’t so bad after all.