why has the price of portland cement increased from 2007 to now?
Maybe its getting scarce im just guessing here...
The national debt went up 10 trillion dollars , inflation went up making our money worth less , needing more money to be printing to keep up with higher cost
The manufacture of Portland cement is an energy consuming process that converts CaCO3 to CaO and reacts it with other raw materials . Portland cement clinker is made by heating, in a kiln, a homogeneous mixture of raw materials to a calcining temperature, which is about 1450 °C for modern cements. This requires a lot of energy , which is probably obtained from oil. Seen the price rise of oil since 2007 , This is reflected in the increased price of cement . Also other greenhousetaxes - consider how much CO2 is released in cement manufacture. Result - the price of cement has risen steeply.