we all see those guy's busting 4 inches of concrete and what not, i'd thought i'd share some of my understanding of concrete. first i would like to say that there are infact people out there that use natural phenomenom to hoodwink the masses... martial illusioinists, as the term just appropriately jumped into my head. secondly i'd like to say that there are folks out there who do not hoodwink the people and use genuine skills aquired through practice and training...
first lets define concrete. concrete is a mixture of sand, cement, water, and gravel, 2B to be exact. proper strength is determined by using the correct ratios of the ingredients... too little cement or too much cement(richness) weakens the strength and integrity of the concrete. taking out the 2B gravel from the mixture and repalcing it with more sand likewise changes the mixture from concrete to mortar(which again lessens the strength), though it is still called concrete by those less informed of the actual concrete recipies... now considering what i have just told you, you can see how easily one can conjure up a seemingly hard and heavy piece of concrete that might actually just be a slab of hard mortar, it's recipie tweeked to minimize actual strength(yet from the casual observation it's just a piece of concrete). the final fact to take into account is that it takes 28 days for portland cement to fully cure, wether or not it is used in concrete or mortar... thanks for reading and have a most wonderful day... HIYA!!!
all of what i have shared with you can be verified by examining a piece of broken concrete or slab of mortar...