scholarly journals Experimental Examination on Mechanical Properties of Polypropylene Fiber Blended Concrete as Partial Replacement of Sand as Stone Quarry Dust

2020 ◽  
Vol 9 (7) ◽  
pp. 623-627
Keyword(s):  
Mechanical Properties ◽  
Polypropylene Fiber ◽  
Construction Materials ◽  
Drying Shrinkage ◽  
Partial Replacement ◽  
Normal Stresses ◽  
Experimental Examination ◽  
Concrete Members ◽  
Maximum Value ◽  
Quarry Dust

Concrete is recognized as a quite breakable material when exposed to impact loading and normal stresses. Concrete tensile strength is nearly one-tenth of its compressive strength. As a result of which concrete members are not able to support such stresses and loads which mainly occurs in most concrete structures. So, we mainly reinforce it with such materials which help it to increase its tensile and flexural strength. Fibers are the material which helps to increase the toughness and durability of concrete and reduce plastic and drying shrinkage. As we know cement, sand and aggregate are three basic construction materials. Due to the huge demand for these materials, their deposits are scarce. So, we need to find the material which can replace them partially and fully. Stone quarry dust is material that may be used to replace sand partially and fully. In this study, the casting of moulds for various percentage of stone quarry dust (5%, 10%, 20%, 30%, 40%, and 50%) is carried and maximum value for stone quarry dust is obtained. After obtaining the max value of stone quarry dust at 10% it is replaced with various percentages of polypropylene fiber (0%, 0.1%, 0.2% and 0.3%). This study aims to investigate the limit up to which stone quarry can be replaced with sand for M35 grade of concrete and to investigate the combined effect of stone quarry dust (10%) and polypropylene fiber with varying percentage (0%, 0.1%, 0.2%, and 0.3%).

Changes of Mechanical Properties of Lightweight Cement Mortar Mixed with Recycled Expanded Polystyrene and Subjected to High Temperatures

2014 ◽  
Vol 1051 ◽  
pp. 752-756 ◽  
Author(s):  
Rocío Sancho ◽  
Ángel Castillo ◽  
Ma Eugenia Maciá ◽  
Rosa Corral
Keyword(s):  
Mechanical Properties ◽  
High Temperatures ◽  
Mechanical Response ◽  
Cement Mortar ◽  
Construction Materials ◽  
Lightweight Aggregate ◽  
Expanded Polystyrene ◽  
Partial Replacement ◽  
Different Temperatures ◽  
Residual Product

The main aim of this paper is to evaluate the influence of the recycled expanded polystyrene as lightweight aggregate on the mechanical properties of lightweight cement mortar when subjected to high temperatures.Various tests have been carried out on different mixtures of mortar. The water/cement mix proportion has always been the same and only the nature of the aggregates has changed, with a partial replacement of the conventional aggregate by recycled ground EPS (EPS-G) with values ranging from 10% to 30%, achieving significant results in relation to exposure to high temperatures. In this research, the samples have been subjected to different temperatures of exposure, in order to analyze the influence of the lightweight recycled arid dosage in the mechanical properties of mortars.The results of this study show the ability of mechanical response at high temperatures with light mortars EPS-G. This study shows how this new mix can be used in different building types, optimizing construction materials and reducing mortars density while transforming a residual product into an active product.

scholarly journals Mechanical Characteristics of Hardened Concrete with Different Mineral Admixtures: A Review

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Tehmina Ayub ◽  
Sadaqat Ullah Khan ◽  
Fareed Ahmed Memon
Keyword(s):  
Mechanical Properties ◽  
Mechanical Characteristics ◽  
Drying Shrinkage ◽  
Mineral Admixture ◽  
Mineral Admixtures ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Granulated Blast Furnace Slag ◽  
Shrinkage And Creep ◽  
Furnace Slag

The available literature identifies that the addition of mineral admixture as partial replacement of cement improves the microstructure of the concrete (i.e., porosity and pore size distribution) as well as increasing the mechanical characteristics such as drying shrinkage and creep, compressive strength, tensile strength, flexural strength, and modulus of elasticity; however, no single document is available in which review and comparison of the influence of the addition of these mineral admixtures on the mechanical characteristics of the hardened pozzolanic concretes are presented. In this paper, based on the reported results in the literature, mechanical characteristics of hardened concrete partially containing mineral admixtures including fly ash (FA), silica fume (SF), ground granulated blast furnace slag (GGBS), metakaolin (MK), and rice husk ash (RHA) are discussed and it is concluded that the content and particle size of mineral admixture are the parameters which significantly influence the mechanical properties of concrete. All mineral admixtures enhance the mechanical properties of concrete except FA and GGBS which do not show a significant effect on the strength of concrete at 28 days; however, gain in strength at later ages is considerable. Moreover, the comparison of the mechanical characteristics of different pozzolanic concretes suggests that RHA and SF are competitive.

scholarly journals Mechanical Properties of the Concrete Containing Porcelain Waste as Sand

2018 ◽  
Vol 7 (4.30) ◽  
pp. 180 ◽  
Author(s):  
Mohammed Jamal ◽  
Mohammad Zaky Noh ◽  
Shihab Al- Juboor ◽  
Mohd Haziman Bin Wan ◽  
Zakiyyu Ibrahim Takai
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Flexural Strength ◽  
Construction Materials ◽  
Weight Ratio ◽  
Partial Replacement ◽  
Suitable Alternative ◽  
Ceramic Waste ◽  
Research Areas ◽  
Sand And Gravel

The demand of concrete have been increases on a daily bases which consume a lot of natural resource such as sand and gravel,  there is an immediate need for finding suitable alternative which can be used to replace sand partially with another materials with high proportion . Ceramic waste is one of the strongest research areas that include the activity of replacement in all the sides of construction materials. This research aims to improve the performance of concrete using ceramic waste, and demonstrate the performance of mechanical properties to the concrete with partial replacement of sand by using waste porcelain. For these, we analyzed the mechanical properties of the concrete such as compressive strength, split tensile and flexural strength, the specimen were measured based on 10% ,20% ,30% ,40%, and 50% weight ratio of replace sand with waste porcelain at different time under water for 7 days , 28 days , 60 days . The optimum consideration were given to mechanical properties of the concrete, at different amount of ceramic waste as sand.

scholarly journals Physico-mechanical characterisation of construction materials based on agro-sourced particles: Hemp concrete

2020 ◽  
Vol 330 ◽  
pp. 01039
Author(s):  
Redouane Zerrouki ◽  
Amar Benazzouk ◽  
Suzanne Daher ◽  
Hassen Beji
Keyword(s):  
Mechanical Properties ◽  
Cement Hydration ◽  
Construction Materials ◽  
Inhibitory Effect ◽  
Partial Replacement ◽  
Test Results ◽  
Lightweight Construction ◽  
Mechanical Characterisation ◽  
Mechanical Strengths ◽  
Different Levels

The study reported in this paper was undertaken to investigate the feasibility of lightweight construction materials, based on vegetable particles. The developed material consists of reference mortar containing different levels of hemp particles as partial replacement of sand in mixture by volume at: 0% (MR), 50%, and 100%. The binder nature has been selected based on the results obtained of chemical compatibility evaluation that highlight the reduction in inhibitory effect exerted by particles on cement hydration. The objective of this work is to evaluate the physico-mechanical properties, through the examination of materials lightning, mechanical strengths (compressive/flexural), and the elasticity behavior of the material at different volume rates of hemp particles. The influence of the direction after casting the material, according to the parallel (//) and perpendicular (?) orientations, with respect to the direction of the stress has been examined. Test-results have shown that despite a significant reduction in mechanical properties, the material exhibits higher residual stress that highlight a ductile behaviour, compared to the reference material. Results also indicated that the perpendicular (?) casting direction leads to exhibit higher mechanical properties, compared to the parallel state.

scholarly journals Partial Replacement of Sand by Crusher Dust and Mild Steel Scrap in Concrete

2021 ◽  
Vol 9 (8) ◽  
pp. 1013-1020
Author(s):  
Diksha Jain
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Mild Steel ◽  
Construction Materials ◽  
Copper Slag ◽  
Partial Replacement ◽  
Steel Scrap ◽  
Fine Aggregate ◽  
Building Engineering

Abstract: This research focuses on studying the effect of Mild Steel Scrap and Crusher Dust on the Properties of Concrete Mixes as a partial replacement of Sand. The trend of mixing several kinds of additional materials such as Glass powder, plastic, Quarry dust, Copper slag, Steel scrap, in building engineering is now growing. Consumption of Crusher dust and Mild steel scrap are one of the lively research area that include the effectiveness of replacement in all the aspects of construction materials. It is very significant to develop eco-friendly concrete from ceramic waste. This Research deals with the experimental study on the mechanical strength properties of M20 grade concrete with the partial replacement of fine aggregate by using crusher dust and mild Steel Scrap. In order to analyze the mechanical properties such as Compressive Strength, Spilt tensile strength, and Workability the samples were casted with mild steel scrap having constant proportion of 5% and crusher dust having 10%, 15% ,20% 25%, 30%, 35%, 40% partial replacement. In second category sand has been partially replaced by mild steel scrap proportion of 10%, 15%, 20%, 25%, 30%, 35% and crusher dust by 20%, 25%, 30% 35% at a different periods of curing 7 days, and 28 days. The optimal of percentage addition of Crusher dust and Mild steel scrap are analyzed considering the needs of mechanical properties of concrete. Keywords: Crusher Dust, Mild Steel Scrap, Compressive Strength, Spilt tensile Strength, Mechanical properties,

scholarly journals Investigation of the Strength Properties of Palm Kernel Shell Ash Concrete

2012 ◽  
Vol 2 (6) ◽  
pp. 315-319 ◽  
Author(s):  
F. A. Olutoge ◽  
H. A. Quadri ◽  
O. S. Olafusi
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Portland Cement ◽  
Construction Materials ◽  
Palm Kernel ◽  
Chemical Properties ◽  
Physical And Mechanical Properties ◽  
Partial Replacement ◽  
Cement Concrete ◽  
Palm Kernel Shell

Many researchers have studied the use of agro-waste ashes as constituents in concrete. These agro-waste ashes are siliceous or aluminosiliceous materials that, in finely divided form and in the presence of moisture, chemically react with the calcium hydroxide released by the hydration of Portland cement to form calcium silicate hydrate and other cementitious compounds. Palm kernel shell ash (PKSA) is a by-product in palm oil mills. This ash has pozzolanic properties that enables it as a partial replacement for cement but also plays an important role in the strength and durability of concrete. The use of palm kernel shell ash (PKSA) as a partial replacement for cement in concrete is investigated. The objective of this paper is to alleviate the increasing challenges of scarcity and high cost of construction materials used by the construction industry in Nigeria and Africa in general, by reducing the volume of cement usage in concrete works. Collected PKSA was dried and sieved through a 45um sieve. The fineness of the PKSA was checked by sieving through 45um sieve. The chemical properties of the ash are examined whereas physical and mechanical properties of varying percentage of PKSA cement concrete and 100% cement concrete of mix 1:2:4 and 0.5 water-cement ratios are examined and compared. A total of 72 concrete cubes of size 150 × 150 × 150 mm³ with different volume percentages of PKSA to Portland cement in the order 0:100, 10:90 and 30:70 and mix ratio of 1:2:4 were cast and their physical and mechanical properties were tested at 7, 14, 21 and 28 days time. Although the compressive strength of PKSA concrete did not exceed that of OPC, compressive strength tests showed that 10% of the PKSA in replacement for cement was 22.8 N/mm2 at 28 days; which was quite satisfactory with no compromise in compressive strength requirements for concrete mix ratios 1:2:4. This research showed that the use of PKSA as a partial replacement for cement in concrete, at lower volume of replacement, will enhance the reduction of cement usage in concretes, thereby reducing the production cost. This research was carried out at the University of Ibadan, Ibadan, Nigeria.

Mechanical Properties of Concrete Produced with Wastepaper for Application of Construction Materials

2014 ◽  
Vol 627 ◽  
pp. 369-372
Author(s):  
Hyun Ki Choi
Keyword(s):  
Mechanical Properties ◽  
Tensile Test ◽  
Construction Materials ◽  
Mix Design ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Mixing Ratio ◽  
Replacement Ratio ◽  
Influence Variable ◽  
Test Result

The purpose of this study was to analyze the mechanical properties of concrete produced with wastepaper for obtaining the optimum mix design of that. The concrete produced with wastepaper was made up of the cement, water, sand, and cut wastepaper. For this purpose, the concrete which had variety mixing ratio of materials was mixed and cured to find out the mechanical properties of that. And, it was performed the compressive and tensile test and the measurement of hardened concrete. The test result of this study was showed that the partial replacement ratio of wastepaper was the decisive influence variable and the correlation between the mechanical properties

Sign in / Sign up

Export Citation Format

Share Document