Vietnam is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, Thailand across the Gulf of Thailand to the southwest, and the Philippines, Malaysia and Indonesia across the South China Sea to the east and southeast.[d] Its capital city has been Hanoi since the reunification of North and South Vietnam in 1976, with Ho ...
Cement. 1  Cement is a binder. Similar to flour in a recipe, the purpose of cement is to hold the other materials together. 2  Concrete is a composite of aggregate (such as sand or gravel), cement, and water. Itâs like a cookie. 3  The basic composition of mortar might seem similar to concrete, but what really sets it apart is how it is used.
The Difference between Concrete and Screed. Concrete and screed and are essentially formed of the same basic ingredients â cement, aggregates and water. But what makes them different is-the size of aggregates, the cement grade, mix consistency, and of course their intended application or use.oncrete in its simplest form is a rock like mass formed by the hardening of cement paste and aggregates mixed in a proportion of â 1Cement: 2Sand: 3Coarse aggregates (ballast/gravel).