URBANTECHBUILDINGS
From the site
Straight answers on materials and method, from the people who build with them.
OPC or PPC Cement: Which One Your Site Actually Needs
OPC 43, OPC 53 and PPC are not interchangeable. A plain explanation of what each is for, where using the wrong one costs you, and what we specify on our own sites in Delhi NCR.
AAC Blocks or Red Brick: An Honest Comparison for Delhi NCR
AAC blocks are lighter, better insulated and faster to lay. Red brick is stronger and easier to fix into. What each one is genuinely better at, and where AAC quietly goes wrong on site.
Lime Plaster: Why an Old Material Keeps Coming Back
Lime was the default binder for centuries, then cement replaced it almost entirely. Where lime still outperforms cement, why damp walls are the clearest case, and why the real obstacle is skill rather than cost.