The alkaliâsilica reaction (ASR) is a reaction which occurs over time in concrete between the highly alkaline cement paste and reactive non-crystalline (amorphous) silica, which is found in many common aggregates and sufficient moisture.his reaction causes the expansion of the altered aggregate by the formation of a swelling gel of calcium silicate hydrate (C-S-H). This gel increases in volume with water, and exerts an expansive pressure inside the material, causing spalling and loss of strength of the concrete, finally leading to its failure.
How does Predoxen Work? Predoxen has got unique properties that makes it work to help men who have taken it realize improved testosterone levels in their bodies. Taking it also enhances production of more testosterone something which improves a manâs overall libido and sex drive.
It works by blocking the production of certain chemicals in the body called prostaglandins, which cause pain and inflammation. Naproxen blocks prostaglandin production by decreasing the activity of an enzyme, called cyclo-oxygenase (COX), which is used to make prostaglandins. tell your doctor if you have or have ever had liver, heart, or kidney disease; high blood pressure; any stomach problems; or any other gastrointestinal disease. - tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding.