1 Use concrete with the proper water-cement ratio. 2  Use air-entrained concrete. 3  Use a durable crushed-stone in the composition of your concrete. 4  Slope the slab surface to ensure proper drainage. 5  Reduce concrete temperature to 50Â°F to 70Â°F (10Â°C to 21Â°C].  Do not finish concrete with bleed water on the surface.
Overalls consist of a single piece of clothing that combines trousers and a jacket. You wear overalls over your clothes in order to protect them while you are working. ...workers in blue overalls.
Sweater is: a knitted jacket or jersey, in pullover or cardigan style, with or without sleeves. The difference apparently is that a sweater can be sleeveless. However, I looked up a bit more, and found that a sweatshirt and sweater are made differently: