C O N T E N T S

 

Chapter 1 - Introduction

5

1.1. The object of "The technology of construction works" discipline

5

1.2. The construction production definition

6

1.3. The particularities of the construction production

8

1.4. The technique progress for the construction production

9

Chapter 2 - Mechanization of construction works

11

2.1. Small mechanization, mechanization, automation and complex mechanization

11

2.2. Productivity of the construction machines

12

Chapter 3 - Building materials transportation

15

3.1. General notions; Classification and characteristics of constructions transportation

15

3.2. Horizontal transportation

17

3.2.1 Long distance horizontal transportation

17

3.2.2 Short distance horizontal transportation

21

3.2.3 Railway transportation

22

3.3. Check the tracking possibilities

23

3.4. Transportation means productivity

27

3.5. Vertical transportation

29

3.6. Combined transportation (horizontal + vertical)

33

3.7. Cranes classification taking into consideration the working parameters

40

Chapter 4 - Earth - works technology

45

4.1. General aspects; Earth configuration

45

4.2. Earth constituent phases

50

4.3. Mechanized digging of the soil

52

4.3.1. Digging process particularities

52

4.3.2. General notions regarding the soil digging resistance

55

4.3.3. Equipments for earth digging and transportation

57

4.3.4. The constructive characteristics and the functional parameters of the

front-acting excavators

59

4.3.5. Optimum characteristics of the working fronts for the frontal method

65

4.3.6. The optimum dimensions of the ending strips

65

4.3.7. The optimum dimensions of the current strip

71

4.3.8. Back acting excavators

72

4.3.9. The organization of a precinct by using front or back acting excavators

81

4.3.10. Dragline excavator

83

4.3.11. Grab bucket excavator

86

4.3.12. The excavators'stability

89

4.3.13. Bulldozers

91

4.3.14. Motor grader

95

4.3.15. Scraper

96

4.4. Soil bracing

99

4.5. Soil compacting

102

4.6. Water evacuation from a building's precinct

104

Chapter 5 - Concrete works

107

5.1. General aspects. Classification, hardening level and concrete structure

107

5.1.1. Concrete classification in terms of age

108

5.2. The properties of fresh concrete

110

5.3. Rheology of concrete

115

5.4. Properties of harden concrete

116

5.5. The components influence over the concrete properties

119

5.6. Admixtures

122

5.7. The concrete mix

127

5.8. Moving and mixing the concrete

133

5.9. Transporting and placing the concrete

137

5.9.1. Equipment and devices for transporting concrete

138

5.9.2. Preparation for placing the concrete

149

5.9.3. Concrete placing

150

5.9.4. Rules for concrete placing

157

5.10. The concrete treating after pouring. Removal of shuttering

161

5.10.1. Concrete protection during hardening when the temperature is between

5C and 30C

161

5.10.2. Conditions regarding removal of shuttering

162

Chapter 6 - Formworks. General aspects

165

Assignments

175

Bibliography

199