scholarly journals Partial Replacement of Wood Ash with Ordinary Portland Cement and Foundry Sand as Fine Aggregate

2017 ◽  
Vol 07 (02) ◽  
Author(s):  
Amir Shafi Batt ◽  
Anshul Garg
Keyword(s):  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Wood Ash ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Foundry Sand

Quaternary blended cement mortars containing wood ash, glass and slag powders

2021 ◽  
Author(s):  
Eethar Thanon Dawood ◽  
Marwa Saadi Mhmood
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Glass Powder ◽  
Steel Slag ◽  
Wood Ash ◽  
Supplementary Cementitious Materials ◽  
Partial Replacement ◽  
Slag Powder ◽  
Steel Slag Powder

AbstractA quaternary supplementary cementitious materials as partial replacement of ordinary Portland cement decreases CO2 emission. This paper has investigated the properties of mortars made from different quaternary blends of wood ash, steel slag powder and glass powder with ordinary Portland cement at different replacement levels of 0, 24, 25, and 30% by weight of the binder. The blended mortar mixtures tested for flow, compressive strength and density. The results showed that the flow of mortars is decreased with the combined use of steel slag powder, glass powder, and wood ash compared with control mix. Compressive strength reduced with the combination of steel slag powder, glass powder and wood ash but this reduction effects is acceptable especially at 24% replacement contain super-plasticizer compared with the ecological benefit.

The Development of Slurry Seal Design with Ordinary Portland Cement Replacement by Low Calcium Fly Ash

2015 ◽  
Vol 776 ◽  
pp. 24-29 ◽  
Author(s):  
Ary Setyawan ◽  
D. Sarwono ◽  
M.S. Adnan
Keyword(s):  
Tensile Strength ◽  
Fly Ash ◽  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Indirect Tensile Strength ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Low Calcium ◽  
Indirect Tensile ◽  
Slurry Seal

Slurry Seal is an impermeable non-structural thin layer that is used for pavement maintenance consisting of a cold laid mixture of asphalt emulsion with continuous graded fine aggregate, mineral filler, water and other added ingredients. Ordinary Portland Cement (OPC) as the main filler in the application of slurry seal. Due to the relatively high cement prices and the pollution control for the environment; it is required to maintain the quality of the slurry by using a combination of OPC and LCFA (Low Calcium Fly Ash). This research was conducted to determine the value of consistency, setting time and indirect tensile strength (ITS) of slurry seal containing LCFA. A consistency testing used to obtain optimum moisture content to produce the sample for the rest of the test. The results show that with the addition of 5% water for pre-wetting and subsequently 10% of water content, the mixture provide appropriate consistency as required by highways standard. The time settings also meet the requirements of highways standard between 15 to 720 minutes for all types of mixtures. The mixture with composition of 50% OPC and 50% LCFA is considered as an ideal mixture at the optimum density value of 1.769 g/cm3, porosity of 9.55% and the indirect tensile strength of 30.99 kPa. It could be concluded that fly ash can be used as OPC partial replacement and enhance the properties on slurry seal application.

scholarly journals Investigating possibilities for using sea shell on compressive strength properties of concrete

2018 ◽  
Vol 7 (1.8) ◽  
pp. 241
Author(s):  
Kiran Kumar ◽  
Vineetha Anil ◽  
Sara Hamed ◽  
Ruwa Malik
Keyword(s):  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Strength Properties ◽  
Partial Replacement ◽  
Flexural Properties ◽  
Fine Aggregate ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Concrete Materials ◽  
Ordinary Portland Cement Concrete

The reason of this attempt was to demonstrate that seashells can be utilized as a partial replacement for fine aggregate in concrete for enhancing strength properties. Since seashells are widely available everywhere in coastal and seashore areas, and some of the concrete materials cannot be found easily everywhere.  The strategies utilized as a part of this attempt was to replace burnt and crushed seashells with fine aggregate at 10%, 20% and 30% and compare it with each other and the traditional Ordinary Portland Cement concrete regarding mechanical properties following 7 and 28 days. In conclusion, despite the fact that seashells are generally accessible and can be effortlessly gathered from seashore and beach front regions, the process of burning and crushing requires a lot of energy and is tedious. In spite of the fact that the results demonstrated that utilizing 20% seashell to fine aggregate substitution has a somewhat higher in compressive and flexural properties than that of Ordinary Portland Cement concrete.

scholarly journals PCC Constituents Quantification Through Partial Replacement of Fine Aggregate and Cement

2019 ◽  
Vol 8 (3) ◽  
pp. 6426-6429
Keyword(s):  
Global Warming ◽  
Portland Cement ◽  
Quartz Sand ◽  
Ordinary Portland Cement ◽  
Strength Characteristics ◽  
Silica Sand ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Natural Sand ◽  
Compressive And Flexural Strengths

The paper aim is to acknowledge the use of Quartz Sand (silica sand) & Metakaolin in replacement of natural sand and cement. As the natural sand is depleting at an alarming rate due to perpetual mining and on other side the emission of co2 from production of cement causing global warming. The M30 grade is prepared as well as evaluated for strength characteristics viz. split tensile, compressive and flexural. Ordinary Portland cement is replaced with metakaolin at 0,10,20,30,40 and 50%, while the fine aggregate is replaced with Quartz sand at 40% constant by weight. The specimens are casted and tested for split tensile, compressive and flexural strengths after curing for 7,14,28 days.

scholarly journals Comparison of Conventional Concrete and Replacement of River Sand by Waste Foundry Sand and Cement by Nano-Silica

2020 ◽  
pp. 201-205
Keyword(s):  
Experimental Investigation ◽  
Compressive Strength ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Nano Silica ◽  
River Sand ◽  
Conventional Concrete ◽  
Foundry Sand ◽  
Concrete Production ◽  
Waste Foundry Sand

This paper presents an experimental investigation on the properties of concrete in which like cement is partially replacing by used nano silica and is partially replacing by used waste foundry sand. Because now a day the world wide consumption of sand as cement and as fine aggregate in concrete production is very high. Nano silica and waste foundry sand are major by product of casting industry and create land pollution. The cement will be replaced with nano silica and the river sand will be replaced with waste foundry sand (0%, 5%, 10%, 15%, 20%). This experimental investigation was done and found out that with the increase in the nano silica and waste foundry sand ratio. Compression test has been done to find out the compressive strength of concrete at the age of 7, 14, 21, and 28. Test result indicates in increasing compressive strength of plain concrete by inclusion of nano silica as a partial replacement of cement and waste foundry sand as a partial replacement of fine aggregate.

scholarly journals Utilization of Sugarcane Bagasse Ash from Power Co-generation Boilers as a Supplementary Cementitious Material

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Safiki Ainomugisha ◽  
Bisaso Edwin ◽  
Bazairwe Annet
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Sugarcane Bagasse ◽  
Low Income ◽  
Ordinary Portland Cement ◽  
Construction Material ◽  
Sustainable Construction ◽  
Partial Replacement ◽  
Hardened Concrete ◽  
Sugarcane Bagasse Ash

Concrete has been the world’s most consumed construction material, with over 10 billion tons of concrete annually. This is mainly due to its excellent mechanical and durability properties plus high mouldability. However, one of its major constituents; Ordinary Portland Cement is reported to be expensive and unaffordable by most low-income earners. Its production contributes about 5%–8% of global CO2 greenhouse emissions. This is most likely to increase exponentially with the demand of Ordinary Portland Cement estimated to rise by 200%, reaching 6000 million tons/year by 2050.  Therefore, different countries are aiming at finding alternative sustainable construction materials that are more affordable and offer greener options reducing reliance on non-renewable sources. Therefore, this study aimed at assessing the possibility of utilizing sugarcane bagasse ash from co-generation in sugar factories as supplementary material in concrete. Physical and chemical properties of this sugarcane bagasse ash were obtained plus physical and mechanical properties of fresh and hardened concrete made with partial replacement of Ordinary Portland Cement. Cost-benefit analysis of concrete was also assessed. The study was carried using 63 concrete cubes of size 150cm3 with water absorption studied as per BS 1881-122; slump test to BS 1881-102; and compressive strength and density of concrete according to BS 1881-116. The cement binder was replaced with sugarcane bagasse ash 0%, 5%, 10%, 15%, 20%, 25% and 30% by proportion of weight. Results showed the bulk density of sugarcane bagasse ash at 474.33kg/m3, the specific gravity of 1.81, and 65% of bagasse ash has a particle size of less than 0.28mm. Chemically, sugarcane bagasse ash contained SiO2, Fe2O3, and Al2O3 at 63.59%, 3.39%, and 5.66% respectively. A 10% replacement of cement gave optimum compressive strength of 26.17MPa. This 10% replacement demonstrated a cost saving of 5.65% compared with conventional concrete. 

scholarly journals Partial Replacement Effect of Firewood Ash (FWA) on the Geotechnical Properties of Clay Stabilized with Cement

2020 ◽  
Vol 16 (2) ◽  
pp. 289-298
Author(s):  
Musab Sabah Abed
Keyword(s):  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Clayey Soil ◽  
Activity Index ◽  
Geotechnical Properties ◽  
Partial Replacement ◽  
Experimental Program ◽  
Replacement Level ◽  
Compressive Test ◽  
Modes Of Failure

AbstractWith the intention of providing a balance between the disposal of wastes generated from incineration processes and mitigate the emissions from industrial activities, the reuse of incineration waste as alternatives to conventional binders would offer a sustainable solution to reduce their environmental impact. This study aims to experimentally investigate the effect of firewood, ash (FWA) and ordinary Portland cement on some of the geotechnical properties of low plastic clayey soil (CL). The experimental program was introduced by partial replacement of ordinary Portland cement with firewood ash (FWA) up to 10 % with an increment of 2 %. A series of unconfined compressive test (UCT) and Atterberg limits test were performed. The results indicate that plasticity characteristics are affected by the addition of both cement and (FWA). Also, the results showed that the unconfined compressive strength increases for all replacement levels in comparison with the plain clay sample. The term deformability index (DI) also discussed with respect to different replacement level. The 70.61 % pozzolanic activity index indicates that (FWA) is a good pozzolan in accordance with ASTM C 618 specification. Finally, three modes of failure were detected which varying in accordance with the proportion of replacement.

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