Fresh concrete is perishable and will lose quality if it sits in the truck too long. ASTM C 94, Standard Specification for Ready Mixed Concrete, says that concrete should be discharged within 90 minutes and before 300 revolutions of the mixer after water has been added to the cement.
You can prevent cavities. Minerals in our saliva, such as calcium and phosphate, along with the protective fluoride that we can get from fluoride toothpaste or a fluoride rinse or in some cases from fluoridated tap water, can repair minerals and protect them from acid damage.
With Ayurvedic origins dating back thousands of years, rinsing one's mouth with water and a tablespoon of coconut oil for 10 to 15 minutes (then spitting out into the trash as the mixture will clog sinks and toilets) helps to prevent bad breath, remove plaque and soothe inflamed gums, says Bencher.