I took a sample of concrete when they were pouring road in front of my house in rural Isaan. Took it to Bangkok for analysis. One half cement missing, too much gravel and sand and water. Did not dare mention to anyone. Phuyai Baan is a friend of CPAC. Road crumbled within two months. But had a big opening ceremony with the Gov. and VIP's at the village temple not even close to the road.