zielsicher Englisch, Bautechnik, Schulbuch

Which of these sentences is correct? a) Unevenness of more than 4mm within 50cm must be levelled out. (correct = 1 meter) b) Pre-levelled stripes at the edges of a room indicate the finished screed level. Complete the following text. Screeds provide a  substructure  suitable for laying floorings. They are usually made from pre-blended  sand-based mortar  mixed with various  binders  . A bonded screed is laid directly on a  foundation base  . An  unbonded screed  is laid on two sheets. They form an  isolating layer and have the function of a  vapour barrier  . A  floating screed  is applied over a layer of  thermal insulating or  soundproofing  material. A  heated screed  has some embedded  pipe work  to heat or cool the house. Draw a sketch of an unbonded screed and label its layers. 09 A2–B1 ✗ 10 A2 11 A2 screed floor covering foundation base compressible material 2 sheets/vapour barrier Solution: see task 07, picture on the right What I can now do: ●● I can identify a correct detail of laying screed.  ➤ 09 Ich kann ein Detail bei der Estrichverlegung korrekt erkennen. ●● I can apply words needed to describe different types of screed.  ➤ 10 Ich kann Vokabel anwenden, um verschiedene Estricharten zu beschreiben. ●● I can draw a sketch of a floating screed.  ➤ 11 Ich kann eine Skizze eines schwimmenden Estrichs zeichnen. 31 Laying screed Check yourself 135 Nur zu Prüfzwecken – Eigentum des Verlags öbv