Effect of Coarse Aggregate on Compression Behavior of Normal
发布时间：2023-09-17 14:26
如今,不同尺寸和类型的粗骨料和纤维增强聚合物(FRP)材料已被广泛应用于改善混凝土的力学性能,主要为抗压性能、抗裂性能、耐久性、延性和裂缝控制能力。混凝土中的粗骨料在混凝土强度中起着至关重要的作用。玄武岩纤维是一种新型的高性能无机纤维,具有耐高温、耐磨、抗拉强度高、失效应变高的特点。本研究的目的是研究粗骨料对按照不同混凝土设计方法设计的普通强度混凝土,及外部有玄武岩纤维增强聚合物布(BFRP sheet)包裹约束的素混凝土的抗压强度和断裂能的影响。本次试验浇筑了不同规格的混凝土试块,包括尺寸为150 mm×150 mm×150 mm的立方体试块,尺寸分别为150 mm×300 mm和100 mm×200 mm的圆柱体试块。玄武岩纤维布被用于外部约束圆柱形试块的加固。根据ASTM的相关规定,测试在混凝土试块养护至第28天时进行。从试验结果可以看出,粗骨料的类型、含量和性质会影响普通强度混凝土的抗压强度。BFRP的约束显著提高了普通强度混凝土的抗压强度,且对混凝土的断裂能也有很大提升。相比于使用低强度粗骨料的素混凝土,使用高强度粗骨料的混凝土试件明显拥有更高的抗压强度和断裂能。不同的混凝土...
【文章页数】：125 页
【学位级别】：硕士
【文章目录】：
Acknowledgement
摘要
Abstract
Notations
Chapter 1:Introduction
1.1 Prelude
1.2 Concrete Ingredients
1.2.1 Cement
1.2.2 Water
1.2.3 Aggregates
1.3 Role of Aggregates
1.4 Fiber Reinforced Polymer Materials
1.5 Basalt Fiber Reinforced Polymer(BFRP)Properties and Applications
1.6 Concrete Mix Design
1.7 Literature Review
1.8 Effect of Coarse Aggregate Size,Content and Type on Compressive Strength of Concrete
1.9 Effect of Coarse Aggregate Size,Content and Type on Fracture Energy of Concrete
1.10 Previous Study on FRP External Confinement of Concrete
1.11 Previous Study on Concrete Mix Design Methods
1.12 Research Motivation and Problem Statement
1.13 Overall/ Specific Research Aim and Scope of Work
1.14 Investigation Methodology
1.15 Summary of the Previous Research Work
1.16 Thesis Outline
Chapter 2:Experimental Program
2.1 Introduction
2.2 Raw Materials
2.3 Concrete mix proportions
2.4 Mix Design and Casting Procedure
2.5 Specimens
2.6 Testing Procedure
2.6.1 Slump Test
2.6.2 Compressive Strength Test
2.7 Summary
Chapter 3:Results and Discussions of Plain Concrete
3.1 Background
3.2 Slump Test
3.3 Failure Mode of Plain Concrete
3.4 Comparison of Concrete Mix Design Methods
3.5 Compressive Strength Results of PC Cube Specimens
3.6 Compressive Strength Results of PC Cylindrical Specimens
3.7 Accumulated Energy and Fracture Energy of Plain Concrete
3.8 Compressive Strength of PC small cylindrical specimens100×200(mm)
3.9 Accumulated Energy and Fracture Energy of PC Cylindrical Specimens100×200(mm)
3.10 Specimen size effect on the compressive strength of normal strength PC concrete
3.11 Summary
Chapter 4:Results and Discussions of BFRP Confined Concrete
4.1 Background
4.2 Failure Mode of BFRP Confined Plain Concrete
4.3 Compressive Strength Test Results of Single BFRP Wrapped Cylindrical Specimens
4.4 Accumulated Energy and Fracture Energy of BFRP Confined Concrete of20 mm NMS
4.5 Compressive Strength of BFRP confined concrete made with15 mm natural rounded CA.
4.6 Accumulated Energy and Fracture Energy of BFRP Confined Concrete of NR-15 mm
4.7 Compressive Strength of BFRP confined cylindrical specimens of size100×200(mm)
4.8 Accumulated Energy and Fracture Energy of BFRP confinedcylindrical specimens of size 100×200 (mm)
4.9 Comparison of Compressive strength,Accumulated Energy and Fracture Energy Results ofdifferent size of BFRP confined specimens
4.10 Summary
Chapter 5:Conclusion and Future Recommendations
5.1 Summary
5.2 Conclusions
5.3 Recommendations for Future Work
References
Author Bibliography
Appendixes
本文编号：3847607
【文章页数】：125 页
【学位级别】：硕士
【文章目录】：
Acknowledgement
摘要
Abstract
Notations
Chapter 1:Introduction
1.1 Prelude
1.2 Concrete Ingredients
1.2.1 Cement
1.2.2 Water
1.2.3 Aggregates
1.3 Role of Aggregates
1.4 Fiber Reinforced Polymer Materials
1.5 Basalt Fiber Reinforced Polymer(BFRP)Properties and Applications
1.6 Concrete Mix Design
1.7 Literature Review
1.8 Effect of Coarse Aggregate Size,Content and Type on Compressive Strength of Concrete
1.9 Effect of Coarse Aggregate Size,Content and Type on Fracture Energy of Concrete
1.10 Previous Study on FRP External Confinement of Concrete
1.11 Previous Study on Concrete Mix Design Methods
1.12 Research Motivation and Problem Statement
1.13 Overall/ Specific Research Aim and Scope of Work
1.14 Investigation Methodology
1.15 Summary of the Previous Research Work
1.16 Thesis Outline
Chapter 2:Experimental Program
2.1 Introduction
2.2 Raw Materials
2.3 Concrete mix proportions
2.4 Mix Design and Casting Procedure
2.5 Specimens
2.6 Testing Procedure
2.6.1 Slump Test
2.6.2 Compressive Strength Test
2.7 Summary
Chapter 3:Results and Discussions of Plain Concrete
3.1 Background
3.2 Slump Test
3.3 Failure Mode of Plain Concrete
3.4 Comparison of Concrete Mix Design Methods
3.5 Compressive Strength Results of PC Cube Specimens
3.6 Compressive Strength Results of PC Cylindrical Specimens
3.7 Accumulated Energy and Fracture Energy of Plain Concrete
3.8 Compressive Strength of PC small cylindrical specimens100×200(mm)
3.9 Accumulated Energy and Fracture Energy of PC Cylindrical Specimens100×200(mm)
3.10 Specimen size effect on the compressive strength of normal strength PC concrete
3.11 Summary
Chapter 4:Results and Discussions of BFRP Confined Concrete
4.1 Background
4.2 Failure Mode of BFRP Confined Plain Concrete
4.3 Compressive Strength Test Results of Single BFRP Wrapped Cylindrical Specimens
4.4 Accumulated Energy and Fracture Energy of BFRP Confined Concrete of20 mm NMS
4.5 Compressive Strength of BFRP confined concrete made with15 mm natural rounded CA.
4.6 Accumulated Energy and Fracture Energy of BFRP Confined Concrete of NR-15 mm
4.7 Compressive Strength of BFRP confined cylindrical specimens of size100×200(mm)
4.8 Accumulated Energy and Fracture Energy of BFRP confinedcylindrical specimens of size 100×200 (mm)
4.9 Comparison of Compressive strength,Accumulated Energy and Fracture Energy Results ofdifferent size of BFRP confined specimens
4.10 Summary
Chapter 5:Conclusion and Future Recommendations
5.1 Summary
5.2 Conclusions
5.3 Recommendations for Future Work
References
Author Bibliography
Appendixes
本文编号：3847607
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