scholarly journals Trial to Determine Durability and Serviceability for Swine Farm in Thailand

2018 ◽  
Vol 206 ◽  
pp. 02001 ◽  
Author(s):  
L Lapcharatsangroj ◽  
U-tapao Chalida
Keyword(s):  
Fly Ash ◽  
Acid Solution ◽  
Silica Fume ◽  
Animal Feed ◽  
Construction Material ◽  
Swine Farm ◽  
Conventional Concrete ◽  
The Face ◽  
Key Issues ◽  
Low Wear

In agricultural construction, the most frequently used construction material is concrete. In particular swine farm, traditional concrete flooring system in the business is conventional concrete. However, the conventional concrete floor has several key issues on its surface. They are easily to be spalled and cracked, pig scour, rough areas, and low wear resistance of acid from animal feed. This research involves study in the ratio between Portland cement and supplementary materials (fly ash and silica fume) that is the most resistant to abrasion. Concrete samples were cured in water for 28 days, then submersed in lactic acid solution at 30 °C (pH 2-3). After exposure to the acid solution, every 7, 14, 28, and 56 days, the samples will be test for attrition on the face of concrete in accordance with ASTM C944 to simulate the acceleration reaction refer to animal behaviour and corrosion from acid of feed. From experiment, it was found that increasing the volume of fly ash and silica fume can increase concrete resistance to corrosion due to acid derived from feed.

scholarly journals High Volume Fly Ash Self Compacting Concrete with Lime and Silica Fume as Additives

2020 ◽  
Vol 184 ◽  
pp. 01109
Author(s):  
C Chandana Priya ◽  
M V Seshagiri Rao ◽  
V Srinivasa Reddy ◽  
S Shrihari
Keyword(s):  
Fly Ash ◽  
Calcium Hydroxide ◽  
Silica Fume ◽  
High Volume ◽  
Hydrated Lime ◽  
Pozzolanic Reaction ◽  
Self Compacting Concrete ◽  
Conventional Concrete ◽  
High Volume Fly Ash ◽  
Reactive Silica

SCC is expensive when compared with normal conventional concrete. Hence, it is desired to produce low cost SCC by replacing cement with higher percentages of fly ash, which is a no cost material and available in abundance. At the same time to achieve higher grade HVFASCC, micro silica which is otherwise condensed silica fume can also be used along with fly ash to enhance the strength properties of HVFASCC. By replacing fly ash in high volumes in the mix, high amount of pozzolanic material becomes available, majorly reactive silica, for which more calcium hydroxide is necessary for further pozzolanic reaction. As we are reducing cement quantity, the amount of calcium hydroxide available is reduced thus demanding external addition of hydrated lime which can be supplied as additive to cater to the need of calcium hydroxide required for reactive silica in fly ash.The present investigation aims to achieve strength for high volume fly ash self-compacting concrete. The replacement of cement with fly ash is made in 45%, 50%, 55%, 60%, 65% and 70% with 20% hydrated lime and 10% silica fume in one trial. In another trial, 30% hydrated lime and 10% silica fume is added with replacement of fly ash to cement varying in same percentages. The design mix is tested for workability and flowability and cubes are casted for compression strength test and tested at 28 day,, 56 day, and 90 day,.

Analytical Study and Laboratory Tests for Investigating the Application of Polymer for Achieving High Strength Concrete

2019 ◽  
Vol 27 ◽  
pp. 39-51
Author(s):  
Kamrun N. Keya ◽  
Alamgir Habib ◽  
Sampa Akhter ◽  
Hasan M. Tamim ◽  
Maksuda Akhter
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Epoxy Resin ◽  
Construction Material ◽  
High Strength ◽  
Experimental Program ◽  
Polymer Concrete ◽  
Conventional Concrete ◽  
Polymer Resin ◽  
Adequate Quality

Polymer concrete is one kind of which is used as an additive of the binding material. Due to their high thermal stability, tensile and flexural strengths, high compressive strength and resistance to chemical, its popularity increasing rapidly and which is now widely used as a construction material. This paper explores a research study that has been establishing a standard correlation between concrete compressive strength with the amount of polymers and other ingredients. Hence a comparison was made between the conventional concrete and polymer concrete. As per ASTM C31, the mix design of polymer concrete is calculated and estimated the material quantity. In this research, a total of twenty-two trail mixes of polymer concrete were prepared with different amount of epoxy resin and hardener. In implementation of experimental program compressive strength test was performed for conventional concrete, polymer resin (epoxy resin) concrete with resin percentage 10%, 12%, 15%, 17% and 20% was performed and compared the results with polymer concrete (no-fly ash) with polymer concrete (fly ash) percentage 15%. It was found that the compressive strength of the polymer concrete was increased with increasing the percentage of a polymer. Compressive strength of the 17% and 20% polymer resin-based polymer concrete was 46.75 MPa and 48.32 MPa and cost was around 1,17,110.00 TK and 1,37,152.00 TK; respectively and also it was observed that by using fly ash the strength of the concrete could be increased significantly. It can be said that higher strength can be achieved with a comparatively high cost. However, the cost can be reduced by proper materials selection, mix ratio, curing and adequate quality control of the material.

Fracture Parameters of Fly Ash and GGBS Based Geopolymer Concrete

2015 ◽  
Vol 764-765 ◽  
pp. 1090-1094
Author(s):  
Tippabhotla D. Gunneswara Rao ◽  
P. Alfrite ◽  
G. Mallikarjuna Rao ◽  
Mudimby Andal
Keyword(s):  
Fly Ash ◽  
Construction Material ◽  
Bending Test ◽  
Geopolymer Concrete ◽  
Test Results ◽  
Conventional Concrete ◽  
Three Point Bending ◽  
Beam Depth ◽  
New Construction ◽  
Source Materials

Geopolymer concrete (GPC) is a new construction material in which cement is totally replaced by calcined source materials fly ash and GGBS. Geopolymer utilization reduces or eliminates the use of cement whose production produces a lot of carbon dioxide. Usually fly ash as a source material for the geopolymer. The behavior of GPC has to be studied in detail to check its suitability in construction industry. In the present study, the fracture behavior of geopolymer concrete is investigated and compared. Three-point bending test on notched prisms with a/d (notch depth/beam depth) ratios 0.1, 0.15, 0.2 are considered. The values of Critical load, fracture toughness, fracture energy and ductility are presented. The test results of total of 27prisms, 6cubes, 18 cylinders with M30 grade geopolymer concrete and conventional concrete (OPC) of same grade are presented in this paper. The test results indicated that the characteristic length of GPC is about 25% more than that of conventional concrete.

scholarly journals Sulfate attack and embedded steel corrosion resistances of volcanic-aggregate concrete with fly ash and silica fume

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Abaho G. Gershome ◽  
Jean de Dieu Mutabaruka ◽  
Leopold Mbereyaho
Keyword(s):  
Corrosion Resistance ◽  
Fly Ash ◽  
Silica Fume ◽  
Construction Material ◽  
Construction Materials ◽  
Steel Corrosion ◽  
Sulfate Attack ◽  
River Sand ◽  
Concrete System ◽  
Supplementary Cementing Materials

Construction materials are increasingly on high demand in the developing world. The construction industry has a challenge of discovering, new  alternative construction materials to conventional materials which are locally available materials in environmentally friendly manner. The  experimental tests are conducted on volcanic concrete system to analyze its properties especially corrosion resistance potential for its applicability in construction. The major aim is to investigate its suitability and corrosion resistance potential especially when used in construction of structures with embedded steel. The test results of the material show that volcanic concrete system with 30% fly ash and 10% silica fume cementing materials is an alternative green construction material. Permeability properties are reduced by 8% and 24% with 30% fly ash and 10% silica fume respectively. Tests also indicate that Compressive strength, Corrosion potential and polarization resistance in volcanic concrete system with supplementing  cement materials has more potential to resist sulfate attack when compared with conventional volcanic concrete systems. The supplementary cementing materials (SCM) reduce the pore system and hence decrease the ingress of corrosive ions an  water in concrete. Corrosive ions, moisture and air would initiate corrosion to the embedded steel in concrete leading to reduced service life such structures. Key word: Supplementary Cementing Materials, Sulfate attack, volcanic concrete system, Granite powder, river sand, Corrosion of embedded steel

scholarly journals Geopolymer Brick by using Flyash, GGBS, Silica Fume and Kadapa Slab Dust

2019 ◽  
Vol 8 (3) ◽  
pp. 2541-2545
Keyword(s):  
Sustainable Development ◽  
Compressive Strength ◽  
Fly Ash ◽  
Water Content ◽  
Silica Fume ◽  
Building Material ◽  
Construction Material ◽  
Base Material ◽  
Material Combination ◽  
Building Component

Brick is the former construction material, a standard-sized non load bearing building component. The ancient bricks manufactured by clay, earth or mud. By 2007 the new ‘fly-ash’ brick made up of cement and flyash which is reliable, weather & acid resistant. The cement is a hugely used building material and liberates CO2 leading to pollution. To minimize pollution and a step to advancement in sustainable development. The current research results to geo polymer brick, where the cement is replaced with GGBS, silica fume and Kadapa slab dust. For bonding, polymers were used with limited water content. Hence produced brick is a hybrid geo polymer brick with multi material combination. Fly ash 75%- GGBS 25% as a base material. GGBS is partially replaced with silica fume and Kadapa slab dust by 2 to 5%. Evaluated through compressive strength results in which we found three optimum proportions such as FA 75%-GGBS22%-SF3% & 75% FA-22% GGBS -3% KSP

Effect of Silica-Based Wastes on Wear Rate and Hardness Properties of Epoxy Composites as a Construction Material

2021 ◽  
Vol 895 ◽  
pp. 31-40
Author(s):  
Rusul Jaber Ghayyib ◽  
Awham Jumah Salman ◽  
Zahraa Fakhri Jawad ◽  
Zainab S. Al-Khafaji
Keyword(s):  
Wear Resistance ◽  
Fly Ash ◽  
Wear Rate ◽  
Polymer Composites ◽  
Silica Fume ◽  
Construction Material ◽  
Epoxy Adhesive ◽  
Glass Addition ◽  
Mineral Additive ◽  
Minimum Wear

In this study, polymer composites were manufactured with epoxy-based resin and wastes as a mineral additive. The wastes including a high content of silica (Silica fume, glass and fly ash) powder were used as fillers for an epoxy adhesive to improve its wear resistance properties. They were supplemented to mixes in various ratios via substituting the resin from 0 to 20% by weight. Tests of wear rate and hardness were conducted upon all-polymer composites at all fillers ratios. Results indicated that the epoxy hardness increased with increasing the filler addition. Consequently, the addition of wastes that include silica raised the wear resistance of polymer composites; nevertheless, it caused the composites harder materials. The wear rate decreased with increasing the silica fume, glass, and fly ash addition. In the case of fly ash addition, the minimum wear rate was at 15%, and after this percentage, the wear rate increased. However, in the case of glass addition, the minimum wear rate was at 10%, and after this percentage, the wear rate increased.

scholarly journals Effect of Foundry Sand and Mineral Admixtures on Mechanical Properties of Concrete

2018 ◽  
Vol 64 (1) ◽  
pp. 117-131 ◽  
Author(s):  
K.V.S.Gopala Krishna Sastry ◽  
A. Ravitheja ◽  
T.Chandra Sekhara Reddy
Keyword(s):  
Fly Ash ◽  
Silica Fume ◽  
Strength Properties ◽  
Sem Analysis ◽  
Mineral Admixtures ◽  
Partial Replacement ◽  
Maximum Increase ◽  
Conventional Concrete ◽  
Foundry Sand ◽  
Fine Aggregates

Abstract Foundry sand waste can be utilized for the preparation of concrete as a partial replacement of sand. The strength properties of M25 grade concrete are studied with different percentages of replacement of fine aggregates by foundry sand at 0%, 10%, 20%, 30%, 40%, and 50%. The optimum percentage of foundry sand replacement in the concrete corresponding to maximum strength will be identified. Keeping this optimum percentage of foundry sand replacement as a constant, a cement replacement study with mineral admixtures such as silica fume (5%, 7.5%, 10%) and fly ash (10%, 15%, 20%,) is carried out separately. The maximum increase in strength properties as compared to conventional concrete was achieved at 40% foundry sand replacement. Test results indicated that a 40% replacement of foundry sand with silica fume showed better performance than that of fly ash. The maximum increase in strengths was observed in a mix consisting of 40% foundry sand and 10% silica fume. SEM analysis of the concrete specimens also reveals that a mix with 40% foundry sand and 10% silica fume obtained the highest strength properties compared to all other mixes due to the creation of more C-H-S gel formations and fewer pores.

scholarly journals EXPERIMENTAL STUDY OF HIGH STRENGTH CONCRETE OF M90 GRADE USING UNPROCESSED FLY ASH AND SILICA FUME

2021 ◽  
Vol 6 (5) ◽  
Author(s):  
Ajit R. Sapkal ◽  
Alankar V. Jadhav ◽  
M.V. Nagendra
Keyword(s):  
Carbon Dioxide ◽  
Fly Ash ◽  
Silica Fume ◽  
High Strength Concrete ◽  
Construction Material ◽  
High Strength ◽  
Cementitious Materials ◽  
Mineral Admixtures ◽  
The Sustainable Development ◽  
Strength Concrete

– Concrete is the most widely used construction material in overall world due to its various advantages in the infrastructural industries. The production of cement causes atmospheric and environmental pollution by emitting carbon dioxide into the atmosphere. Pozzolonic by products from electrical industries are supplimentory cementitious materials such as GGBS, fly ash, slag, Rice Husk are utilized in recent years as cement alternative material for growing HSC with progressed workability, energy and durability with decreased permeability. High strength concrete (HSC) is made with adding mineral admixtures like silica fume, fly ash in the concrete. Using cementitious materials such as unprocessed fly ash and silica fume in the High strength concrete mix gives benefits in various ways. Also these materials reduces emission of carbon dioxide in the atmosphere. So that, It gives an environment friendly concrete for the sustainable development. Preparing high strength concrete by using these cementitious materials with super plasticizers gives required strength.

scholarly journals Studies on Mechanical properties of High Calcium Fly ash based sustainable Geopolymer concrete

2021 ◽  
Vol 2070 (1) ◽  
pp. 012184
Author(s):  
B Vijaya Prasad ◽  
N Anand ◽  
P D Arumairaj ◽  
M Sanath Kumar ◽  
T Dhilip ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Construction Material ◽  
Sustainable Construction ◽  
Geopolymer Concrete ◽  
Conventional Concrete ◽  
High Calcium ◽  
Major Interest ◽  
High Calcium Fly Ash

Abstract Geopolymer concrete (GPC) is a Sustainable construction material, in which cement is completely replaced by Fly ash as binder. To control emission of CO2 during the production of cement, it is advisable to use alternate sustainable Cementitious material. The development of GPC become a major interest to use for in-situ and precast applications. The present study aims to develop High calcium fly ash based GPC with aid of alkaline liquids such as sodium Hydroxide (NaOH) and Sodium silicate (Na2SiO3). Different molarities i.e 4M, 6M, 8M and 10M are used to develop the GPC under ambient and oven curing process. In the present investigation the Fresh properties of GPC and Mechanical properties such as compressive strength, Tensile strength, Flexural strength and Elastic modulus of GPC are investigated. An increase of alkaline activator in in the mix decreased the workability of GPC. The developed GPC mix of 8M is found to be the optimum for gain in compressive strength. A polynomial relationship is obtained for the mechanical properties of GPC developed under ambient and oven curing. The development cost of GPC can be reduced up to 11.25 to 16.5% as compared with conventional concrete grade of M25.

scholarly journals Experimental Examination on Blended Concrete by Incorporating Fly ash and Silica Fume

2019 ◽  
Vol 9 (2) ◽  
pp. 3827-3830
Keyword(s):  
Fly Ash ◽  
Silica Fume ◽  
Bending Strength ◽  
Cement Content ◽  
Copper Slag ◽  
Cementitious Material ◽  
Experimental Examination ◽  
Conventional Concrete ◽  
Volume Properties ◽  
Pozzolanic Materials

Now days, concrete mixture contains additional cementitious material which imparts additional strength. The admixtures and pozzolanic materials are produced large tons from the fast growth of industries, which is used for this material such as Fly ash, Silica fume, GGBS, copper slag, etc. By using these types of materials improve the concrete dressed in fresh and hardened states. In this present work different tests are held to have tentative results for comparison of conventional concrete including various possessions of concrete mixes developed by using OPC 53 grade cement. These mixes are improved by replacing 5%, 8%, and 10% Silica Fume. After best results of Silica Fume, it is intermingled with Fly Ash with 10%, 22%, 10%, by varying the cement content to 75%, 70%, and 80% in terms of volume. Properties like compressive, split tensile and bending strength are studied for 7, 28 and 56 days

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