Электронные лекции для специальности 08.02.01 Строительство и эксплуатация зданий и сооружений 3 курс

Практическая 18. Современные строительные материалы. (2 часа)

План

1. Знакомство с лексикой по теме «Современные строительные материалы».

2. Работа с текстом по теме «Пенобетон и фибробетон как современные строительные материалы».

1. Знакомство с лексикой по теме «Современные строительные материалы».

2. Работа с текстом по теме «Пенобетон и фибробетон как современные строительные материалы».

Read and translate the text

Foamed concrete

       Depending on density foamed concrete can be divided into the following types:

·         insulating

·         structural

·         structural and insulating

      Foamed concrete can be used in all climatic zones. It has perfect insulating characteristics and is operable for manufacturing all construction elements.

 Properties of foamed concrete:

 1. Low heat transfer. Foamed concrete porous structure provides good insulation, so walls and floors made of foamed concrete do not need additional insulation.

 2. Good acoustic insulation. Foamed concrete provides low noise transmission. This feature is necessary for making acoustical blanket on floor slabs made of structural concrete.

 3. Ecological properties. Foamed concrete is one of the most eco-friendly and non-hazardous materials, also it doesn’t educe any harmful substances in operation. It is inferior in environmental compatibility only to wood, but at the same time foamed concrete has longer lifetime and is more reliable.

 4. Fire safety. Due to low heat transfer foamed concrete secures from fire and it is highly recommended for fire-resistant constructions.

 5. Long time performance. Foamed concrete is resistant to moistness and doesn’t decay.

 6. Comfort operation conditions. In foamed concrete buildings thermal lost in cold seasons is minimized, and costs for conditioning in summer decrease.

     Areas of application: walls and partitions in low-height buildings, Exterior and enclosure structures in monolithic house-building, acoustic and heat insulation of inter-floor construction, roofs winterization, heat insulation of pipelines and process equipment, voids filling (shafts preservation), construction blocks, beams, wall panels and floors manufacturing.

Fibro Concrete

        Abstract: Nowadays, construction often is used a composite material. Including fibro concrete of reinforcing synthetic fibers. In this title was survey the effect of fiber reinforcement. PAN and HC on the properties of concrete in depend of length fibers, its design, types dressing, composition of concrete, aggregate fineness and etc. As a result of influence was revealed that is not depend of length fibers in the same mobility of concrete mix and different flow consumption of cement concrete strength in compressive decreases and increases a concrete of fiber. The same conditions strength concrete in flexural with increases content fibro rising. In attendance fibro model is deformation decreases but maximum permission increase.

Задания

1. Составить 7 вопросов по тесту.

2. Выпишите незнакомые слова с текста.

1.Батманов В.В. Engineering : сборник текстов и упражнений по английскому языку для студентов, обучающихся по направлению «Строительство»/В.В. Батманов, Е.К. Платонова. – Волгоград: ВолгГАСУ, 2017. – 458Кбайт.

2. http://beteh.ru/en/production/foamed-concrete/properties/

3.https://theconstructor.org/concrete/foam-concrete-materials-properties-advantages-production/15921/