An experimental investigation into the tensile strength scaling of notched composites

2007 ◽  
Vol 38 (3) ◽  
pp. 867-878 ◽  
Author(s):  
B.G. Green ◽  
M.R. Wisnom ◽  
S.R. Hallett
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength

Experimental Investigation of the Compaction and Tensile Strength of Co-cured Skin-to-Stiffener Structures

2010 ◽  
Vol 18 (5) ◽  
pp. 371-383 ◽  
Author(s):  
Xueming Wang ◽  
Fuyuan Xie ◽  
Min Li ◽  
Zuoguang Zhang
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength

Behavior of Continuous FRP Rectangular Spirals as Shear Reinforcement for Concrete Beams

2011 ◽  
Vol 418-420 ◽  
pp. 307-312
Author(s):  
Shi Yong Jiang ◽  
Bing Hong Li ◽  
Qian Hua Shi ◽  
Xian Qi Hu
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength ◽  
Concrete Beams ◽  
Concrete Strength ◽  
Concrete Structures ◽  
Test Method ◽  
Test Results ◽  
Shear Reinforcement ◽  
Straight Portion ◽  
Embedment Length

The replacement of steel stirrups with FRP stirrups in concrete structures can significantly improve the durability under severe environmental conditions, increase the service life of the structure. In some cases where the application of traditional concrete structures is restricted, such as structures that require the environment without magnetic and electric interferences, the best way is to use nonmetallic materials. Considering the unique properties compared with traditional reinforcements, FRP reinforcements is very suitable in such cases. This paper discussed the behavior of FRP stirrups used as shear reinforcement for concrete structures, continuous FRP rectangular spirals, a type of FRP stirrups, was used in the experimental investigation. Inspired by the test method suggested by ACI Committee 440, L shape specimen and U shape specimen are designed to test the tensile strength of continuous FRP rectangular spirals. Through the analysis of test results, it is indicated that the strength of the bent portion of FRP spirals is significantly lower than that of the straight portion, and the strength of FRP spirals would increase as the concrete strength or the embedment length of the bent portion increased. The loading mechanism of continuous FRP rectangular spirals embedded in concrete beams can be better represented by U shape specimen compared with L shape specimens, it is suggested by the author that the U shape specimen can be use when the dimension of FRP stirrups or spirals does not meet the requirements of ACI Committee 440 test method.

Polyester Fibers in the Concrete an Experimental Investigation

2011 ◽  
Vol 261-263 ◽  
pp. 125-129 ◽  
Author(s):  
Venu Malagavelli ◽  
Neelakanteswara Rao Paturu
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
Crack Resistance ◽  
Industrial Waste ◽  
Fiber Reinforced Concrete ◽  
Split Tensile Strength ◽  
Biodegradable Waste ◽  
Polyester Fibers

Construction field has experienced a growing interest in Fiber Reinforced Concrete (FRC) due to its various advantages. The disposal of industrial waste especially non biodegradable waste is creating a lot of problems in the environment. In the present investigation, an attempt has been made by using non biodegradable waste (polyester fibers) in the concrete to improve the crack resistance and strength. Concrete having compressive strength of 25MPa is used for this study. Samples were prepared by using various fiber contents starting from 0 to 6% of with an increment of 0.5% for finding Compressive strength, split tensile strength and flexural strengths. It is observed that, compressive strength, split tensile strength and flexural strengths of concretes is increasing as the fiber content is increased up to some extent.

scholarly journals Performance of sustainable self-compacting fiber reinforced concrete with substitution of marble waste (MW) and coconut fibers (CFs)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jawad Ahmad ◽  
Fahid Aslam ◽  
Rebeca Martinez-Garcia ◽  
Mohamed Hechmi El Ouni ◽  
Khalid Mohamed Khedher
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Reinforced Concrete ◽  
High Strength ◽  
Fiber Reinforced Concrete ◽  
Self Compacting Concrete ◽  
Pozzolanic Materials ◽  
Passing Ability ◽  
Marble Waste

AbstractSelf compacting concrete (SCC) is special type of concrete which is highly flowable and non-segregated and by its own mass, spreads into the formwork without any external vibrators, even in the presence of thick reinforcement. But SSC is also brittle nature like conventional concrete, which results in abrupt failure without giving any deformation (warning), which is undesirable for any structural member. Thus, self-compacting concrete (SCC) needs some of tensile reinforcement to enhance tensile strength and prevent the unsuitable abrupt failure. But fiber increased tensile strength of concrete more effectively than compressive strength. Hence, it is essential to add pozzolanic materials into fiber reinforced concrete to achieve high strength, durable and ductile concrete. This study is conducted to assess the performance of SCC with substitutions of marble waste (MW) and coconut fiber (CFs) into SCC. MW utilized as cementitious (pozzolanic) materials in percentage of 5.0 to 30% in increment of 5.0% by weight of binder and concrete is reinforced with CFs in proportion of 0.5 to 3.0% in increment of 0.5% by weight of binder. Rheological characteristics were measured through its filling and passing ability by using Slump flow, Slump T50, L-Box, and V-funnel tests while mechanical characteristics were measured through compressive strength, split tensile strength, flexure strength and bond strength (pull out) tests. Experimental investigation show that MW and CFs decrease the passing ability and filling ability of SCC. Additionally, Experimental investigation show that MW up to 20% and CFs addition 2.0% by weight of binder tend to increase the mechanical performance of SCC. Furthermore, statistical analysis (RSM) was used to optimize the combined dose of MW and CFs into SCC to obtain high strength self-compacting concrete.

scholarly journals Experimental Investigation of Concrete with Recycled Aggregates for Suitability in Concrete Structures

2019 ◽  
Vol 9 (23) ◽  
pp. 5010
Author(s):  
Arkadiusz Denisiewicz ◽  
Małgorzata Śliwa ◽  
Krzysztof Kula ◽  
Tomasz Socha
Keyword(s):  
Experimental Investigation ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Water Absorption ◽  
Frost Resistance ◽  
Experimental Tests ◽  
Strength Properties ◽  
Recycled Aggregates ◽  
Total Shrinkage ◽  
Structural Applications

This paper presents the experimental tests of concrete made on the recycled aggregates basis. Tests were carried out to determine the concrete suitability for construction purposes. The physical and strength properties were determined for three types of recycling aggregates. The aggregates were obtained from sanitary ceramics ‘SC’ (washbasins and toilet bowls), building ceramics ‘BC’ (solid bricks), and concrete rubble ‘CR’. The results obtained in tests of compressive strength, bending tensile strength, water absorption, total shrinkage, watertightness, and frost resistance of concrete made of SC and CR aggregates gave grounds for stating its suitability for structural purposes. Concrete based on the BC aggregates is not recommended for structural applications.

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