- •Т. М. Карлова building a house как построить дом
- •Contents
- •Vocabulary to memorise:
- •Read Text 1. Indicate the most common building materials and say where and why people use them. Text 1. Building materials in construction
- •Introduction
- •Building materials
- •Text 2 . Materials science: plastics
- •Vocabulary and Grammar Consolidation Exercises
- •Ex.21. Read text “Stone” and translate it sentence by sentence. Underline the adjectives and adverbs and say what comparative forms they are in. Stone
- •Ex. 22. Translate the sentences with more comparisons.
- •1. What is the best test with stone for different people?
- •2. What is the dampness of stone caused by?
- •3. What kind of structure has granite got?
- •5. Is limestone always white?
- •10 Natural Building Materials
- •Scan Text 1 “Buildings and Their Types” and define the functions of the units marked I, II and III.
- •Text-Based Exercises
- •Text 2. Building houses
- •Additional Vocabulary
- •A) Translate the sentences with simple infinitives and for-phrases:
- •Ex. 31. Translate the sentences with modal verbs. Pay special attention to passive Infinitives.
- •Building
- •Buildings serve several needs of society - primarily as shelter from weather and as general living space, to provide privacy, to store belongings and to comfortably live and work.
- •1. What does the construction of a house start with?
- •2. What work is the designer responsible for when building a house?
- •3. What is a lintel and where is it used?
- •4. How are floor boards laid?
- •5. What materials are usually used for covering the roof of the building?
- •6. Who are the elements of internal infrastructure fixed by ?
- •Interior construction
- •Unit 3. Foundation
- •Vocabulary to memorise:
- •Read text 1 ‘foundations in construction’. In the text point out the introductory part, the main part and the conclusion.
- •Text 2. Types of foundations
- •Vocabulary and Grammar Consolidation Exercises
- •Pile foundations
- •Vocaulary notes
- •Text 4. Different types of house foundations
- •1. Which defects are more common, troubles with walls or with foundations?
- •2. What factor is important to consider besides the soil type?
- •3. Can poured concrete foundations be good in cold climates?
- •4. What helps to support frost-protected foundations from frost damage?
- •5. What are the advantages of wood for permanent foundations?
- •6. What types of raised foundations are there?
- •Read text 5. Foundations and Types of Soils
- •Text 5. Foundations and types of soils
- •Discussions
- •Unit 4. Brick and masonry
- •Henri Poincaire
- •Vocabulary to memorise:
- •In the text point out the introductory part and the main part. Text 1. Brick loadbearing walls
- •Text 2. Masonry
- •Bricks are laid flat in rows called courses, exposing either their sides (stretcher) or ends (header).
- •Extreme weather may cause degradation of masonry wall surfaces due to frost damage.
- •Vocabulary and Grammar Consolidation Exercises
- •1. What does lime improve when it is used in the motar?
- •2. What mix proportions ensure workability, adhesion and durability?
- •3. What is the function of liquid plasticizers?
- •4. What is pointing?
- •Read text 5. 10 Good Reasons For Natural Stone
- •Project 2. Brick and Masonry
- •Unit 5. Concrete and cement
- •Vocabulary to memorise
- •4. ______ From construction, demolition and excavation waste are used as partial replacements of natural aggregates
- •5. Decorative stones or crushed glass are added to the surface of concrete for a decorative ______.
- •6. ______ Are added to the concrete to obtain desirable characteristics.
- •7. Chemical admixtures are materials (в виде порошка или жидкостей) that give concrete certain characteristics not obtainable with plain concrete mixes.
- •4. Водно-цементная смесь твердеет и набирает прочность спустя какое-то время.
- •5. Разрешается также примешивать ряд искусственных заполнителей, включая остывший шлак доменной печи и зольный остаток.
- •6. Химические примеси - это материалы в виде порошка или жидкостей, которые добавляются к бетону, чтобы придать ему свойства, которые невозможно получить с простыми бетонными смесями.
- •Text 2. Types of concrete
- •Regular concrete
- •High-strength concrete
- •Reinforced concrete
- •Prestressed concrete
- •Additional Vocabulary
- •Vocabulary and Grammar Consolidation Exercises
- •Text 3. Cement
- •Text 4. Early concrete
- •1. What is “pozzoulana”?
- •2. What technique did the Romans use to construct buildings?
- •3. Was the early cement used throughout Europe?
- •4. Why wasn’t pozzuolan cement used widely in the world?
- •5. Who was the first person to patent Portland cement?
- •Cement Alternatives
- •Discussions
- •Unit 6. Wood and wood-based materials
- •Vocabulary to memorise
- •Text 1. Wood
- •Text 2. Engineered wood
- •Additional Vocabulary
- •Text 4. About wooden houses
- •1. Why has wood become an appealing buildin materal?
- •2. Due to what are wooden houses included into the low-energy category?
- •3. Where does wood acacumulate energy from?
- •4. What does rational use of wood imply?
- •5. In what is our responsibility concerning nature?
- •Aqueducts ['ækwidʌkt] - акведук, водопровод; канал, проход, труба
- •Bond - перевязка кирпичной кладки, тип кладки, рисунок на поверхности стены
- •Brick laying – кладка кирпича
- •Cover ['kʌvə] - крышка; охватывать, покрывать
- •Driveways [‘draivwei] - дорога, проезд, путь; подъездная дорожка
- •Header ['hedə] - тычок кирпича, кирпичной кладки; опорная несущая балка
- •Herringbone - шеврон, кладка «в елку»
- •Insert [in’sə:t] - вставлять, вкладывать
- •Install [instɔ:l] – устанавливать, вставлять,
- •Overlap - перекрытие, нахлестка класть кирпичи внахлестку
- •Primarily [prai'merəli] - первоначально; в основном, главным образом
- •Stretcher [’strеtʃə] - ложок кирпича
- •Weight bearing (wall) - несущая (стена)
1. What does lime improve when it is used in the motar?
Mortar is the material which binds the bricks and blocks together. It helps to distribute the load through a wall and seals the brick or block joints against water ingress. Mortars should have:
good workability,
sufficient resilience to accommodate long term thermal movement of the masonry,
adequate bond strength,
good resistance to water penetration.
Mortar is made from fine aggregate (usually sand) and a binding agent (nowadays usually cement). When mixed with water a chemical reaction, called hydration, occurs and the mortar sets. Early mortars were usually based on lime and sand but they were very slow to set and readily absorbed rain water (the mortar sets through a process known as carbonation where the lime gradually hardened by absorbing carbon dioxide from the atmosphere). Modern mortars use cement as the main binding agent although hydrated lime (i.e. bagged lime) is often introduced into the mix to give it a more plastic feel and to make it more 'workable'. Lime also improves the mortar's ability to cope with thermal and moisture movement. By varying the proportions of the cement the strength of the mortar can be increased or decreased as required.
2. What mix proportions ensure workability, adhesion and durability?
A given volume of sand contains approximately 25% of air space. The strength and physical properties of a mortar are determined by the type of binder that fills this air space. For example, a cement/sand mix of 1:3 will result in the air space within the sand being completely filled by the cement, producing a strong but brittle mortar. The relatively high cement content will result in shrinkage as the mortar sets. Many bricks and blocks cannot resist this shrinkage resulting in loss of bond and cracks in the mortar. By replacing some of the binder with lime (say 1:1:6, cement/lime/sand) the binder/aggregate ratio is maintained at 1:3 and the mortar has improved workability, better adhesion and longer durability.
3. What is the function of liquid plasticizers?
Liquid plasticisers can be used in place of lime to improve the nature of a mortar. Plasticisers are usually air entraining agents; in other words, air is introduced into the mix to break down the internal friction and produce more workable mortars. A mortar mix of 1 part cement to 5 parts sand, plus plasticiser, is roughly equivalent to a 1:1:6, cement/lime / sand mix. Another option is to use masonry cement. This is a pre-bagged mix of cement with added chemicals to improve the workability of the mortar. Their finished strength is lower than cement mortars so they should only be used for lightly stressed brickwork in sheltered situations. They should not be used below ground level.
In recent years the use of pre-mixed mortars has become common. These are delivered to site in sealed containers, ready for use. They usually contain a retarder so they remain usable for 36 - 48 hours or so. At the end of this period they develop their strength in the same way as normal mortars.