Cement. Our Cement is a strong high quality binder for any job. Buy Quality, Low cost building materials and insulation products. Build4less.ie supplies all building materials to trade and the public at wholesale and trade prices. Cement when wet will bind with sand and gravel and when it drys will set hard. Cement is also used in concrete and the amount of cement used in each application varies on the strength you want the concrete to set too. Cement is a very versatile material and is used all over the world. This cement can be dispatched as Lagan or Irish cement.