Influence of Waste Paper Sludge Ash (WPSA) and Fine Recycled Concrete Aggregate (FRCA) on the Compressive Strength Characteristic of Foamed Concrete (original) (raw)
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Recently, the efforts on the development of environmentally friendly construction materials with particular attention on the utilization of industrial waste materials in their manufacturer for sustainable development are highly desirable. Consequently, foamed concrete is an alternative concrete that has possibility for utilization of waste materials. One of the industrial wastes that are becoming attractive nowadays is waste paper sludge ash (WPSA), a local by-product produced abundantly by the paper newsprint industry. Previous studies revealed that WPSA contains considerable quantities of alumino-siliceous material and can be used as a unique cement replacement material. Furthermore, along with the growth in population and rapid urbanization currently, huge amount of concrete wastes are being generated widely. For this reason, recycling of this waste as a source of aggregate is increasingly being used in concrete. Attempts have been made to incorporate incinerated WPSA and fine recycled concrete aggregate (FRCA) to produce new types of lightweight foamed concrete. The aim of this investigation is to study the effect of the inclusion of WPSA and FRCA replacement as cement and sand content respectively with respect to the compressive strength performance of foamed concrete. The finding of the present study exhibited that WPSA and FRCA seems to contribute to a favorable compressive strength of foamed concrete.
Study of Concrete Involving Use of Waste Paper Sludge Ash As Partial Replacement of Cement
Cement manufacturing industry is one of the carbon dioxide emitting sources besides deforestation and burning of fossil fuels and concrete industry is one of the largest consumers of natural virgin materials. The global cement industry contributes about 7% of greenhouse gas emission to the earth's atmosphere. In order to address environmental effects associated with cement manufacturing and constantly depleting natural resources, there is a need to develop alternative binders to make concrete industry sustainable. This work examines the possibility of using waste paper sludge ash as partial replacement of cement for new concrete. In this study waste paper sludge ash was partially replaced as 5%, 10%, 15% and 20% in place of cement in concrete for M-25 mix and tested for its compressive strength, tensile strength, water absorption and dry density up to 28 days of age and compared with conventional concrete. From the results obtained, it is found that Waste Paper Sludge Ash can be used as cement replacement up to 5% by weight and particle size less than 90µm to prevent decrease in workability. Further waste paper sludge has very high calorific value and could be used as a fuel before using its ash as partial cement replacement.
Strength Characteristics of Concrete Using Paper Sludge Ash and Foundry Sand
International Journal of Constructive Research in Civil Engineering, 2016
The Rapid Construction activities has increased in the demand for concrete, which leads to overuse of natural resource in the manufacture of cement. Hence, conservation of natural resources is necessary. Among the wastes generated by the various industries it is presumed that 10%-15% of wastes are hazardous and increasing at the rate of 2%-5% per year, resulting in environmental pollution and effect to living beings. The present work is focused on the use of wastes such as paper sludge (from Paper Mill Industry) which can be utilized as alternative construction material, so that it would be one of the consistent ways of disposal. The study also incorporates the use of foundry sand as a partial replacement for sand. Experiments were performed to understand the strength parameters such as compressive and tensile strength of Paper Sludge Ash (5%, 10%, and 15%) as a partial replacement of cement and Foundry Sand (20%, 40% and 60%) as a partial replacement of fine aggregate. From the study it can be observed that replacement of cement with 40% foundry sand 8.12% increase in compressive strength was obtained. Mix with 40% replacement of foundry sand and 5% replacement of Paper Sludge Ash gave the maximum Flexural Strength compared to other mix.
International Journal of Innovative Research in Engineering and Management (IJIREM), 2023
This study looked at how using small or large pieces of Rice Husk Ash and Waste Paper Sludge Ash can affect how strong and how much the concrete shrinks when it dries. When Rice Husk Ash (RHA) and Waste Paper Sludge Ash (WPSA) were added to concrete, more water was needed. However, the mechanical properties of the concrete were similar or better than the concrete made with just Ordinary Portland Cement (OPC). Finer RHA and WPSA gave the best improvements. Rice husk and waste paper ash made things shrink a lot because of tiny particles that cause it to happen. This research looked at using waste paper sludge ash instead of some of the cement in a kind of concrete called M20 mix. They tested different amounts of the ash (0%, 5%, 10%, 15%, 20%, and 25%) to see how strong it made the concrete. They tested the strength of the concrete up to 28 days after it was made and compared it to normal concrete. Waste paper sludge can be used as fuel because it has a lot of heat energy. Afterwards, the remaining ash can be used to replace some of the cement.
Performance of Concrete Using Paper Sludge Ash and M-Sand
Irish Interdisciplinary Journal of Science & Research (IIJSR) , 2021
Due to increase in construction activities there is increase in demand for concrete, which leads to over use of natural resource. Hints, conservation of natural resource is necessary thing. Among the waste generated it is presumed that 10% to 15% of waste hazardous and increasing at the rate of 2% to5% per year resulting in environmental pollution and effect to living beings. These wastes can be utilized as alternative construction material, so that would be one of the consistent ways of disposal. This paper attempts to study the strength parameters such as compressive and tensile strength of paper sludge ash (15% and 20%) as partial replacement of cement, M-sand (50% and 60%) of partial replacement of fine aggregate for a design mix of M25.
Experimental Investigation on Usage of Waste Paper Sludge (WPS) in Concrete Making
Cement is the main component of any construction. Due to rapid usage of natural resources such as lime stones, clay etc. during the production of cement causes larger depletion in our natural reserves. There is a need to think ahead to make arrival of new material which best suites to replace the cement. Every industry produces wastage. All the wastages cannot be replaced. The chemical, physical properties should be characterized before replacing. Paper making generally produces a large amount of solid wastes which are spread over the cropland and contaminants builds up over it. The disposal is the major problem in paper industry. They cause severe air pollution when it is burnt. Paper sludge consists of minimum amount of silica, magnesium and considerable amount of lime, which is the main property of cement. So the disposal and pollution problems can be reduced to greater extent by partially replacing the cement using paper sludge from paper industries. This study investigates the use of waste paper sludge in concrete mix of M30 with 4%, 8%, 12% and 16% as partial replacement of cement. Cube of size 150 x 150 x 150mm, prism bars of 500 x 100 x 100mm, cylinders of 100 x 200mm are casted for both conventional M30 grade concrete and partially replaced concrete. The curing period of 3, 7, and 28days were allowed and test was conducted to determine its compressive strength, flexural strength and split tensile strength. The results obtained through this investigation were found to be satisfactory for the compressive strengths. Keywords – waste paper sludge, paper waste in concrete making, recycle and reuse of paper waste, M30 grade concrete and partially replaced concrete. The curing period of 3, 7, and 28days were allowed and test was conducted to determine its compressive strength, flexural strength and split tensile strength. The results obtained through this investigation were found to be satisfactory for the compressive strengths.
Use of Waste Paper Sludge Ash as Supplementary Cementious Material in M20 Concrete
International Journal of Innovative Research in Engineering and Management (IJIREM), 2023
In this modern age concrete and cement mortar are abundantly used in construction. Large amounts of industrial waste are generated and if these wastes are not correctly used it will cause negative impact, thinking about environment, concrete engineers are trying to find out some cementitious materials that will have more strengthening ability and less impact on the environment than cement. During the processing of cement huge quantity of CO2 is discharged into the surroundings, so to find out the replacement for cement we are approaching towards a clean and pollution-free atmosphere. In the same way, during this research work, we are using waste paper sludge ash as a supplementary cementitious material. The paper sludge which is the byproduct of a paper mill which is obtained during the manufacturing and recycling of paper. By using of waste paper sludge in concrete as supplementary cementitious material also increases strength in the concrete like compressive, flexural and split tensile strength. The paper sludge ash is used in the concrete in different values from varying percentages of 2% to 10%. During the manufacturing of the concrete all the codes have been followed for mixing. In this manufacturing process cubes of size (150*150*150) mm and cylinders of (150*300) mm were made with the change in percentage of WPSA. The specimens which were casted were properly cured and all the tests were conducted on them. The tests which was performed on the samples were split tensile, Flexural, Compressive strength, Normal consistency test, etc. It has been observed and recorded that the strength of the samples was increasing with the addition of the waste paper sludge ash.
Fundamental Investigation of Recycled Concrete Using Paper Sludge Ash and Silica Fume
MATTER: International Journal of Science and Technology, 2021
Waste management and recycling of wastages play an important role in having a sustainable city or eco-city. Rapid increasing population in some cities of the world and especially in developing countries cause a different kind of pollution such as air, water, noise, visual, etc. Wastages are directly associated with city contamination. Useful policies for recycling waste can reduce pollution and boost the economy of a country. This study investigates the influence of recycled concrete aggregate (RCA), Silica fume (SF), and paper sludge ash (PSA) on the workability, compressive strength, and acoustic emission behavior of concrete. 5 and 10% of cement were replaced by PSA and silica fume and 10 and 20% of coarse aggregate was replaced by the recycled aggregate. PSA and SF improved the Strength, and acoustic emission behaviors of concrete, moreover, the recycled aggregate also improved the properties of concrete.
Study on Partial Replacement of Cement with Waste Paper Sludge Ash in Fibre Reinforced Concrete
International Journal of Science and Research (IJSR), 2017
Portland cement is the most important ingredient of concrete and is a versatile and relatively high cost material. Large scale production of cement is causing environmental problems on one hand and depletion of natural resources on other hand. This work examines the possibility of using waste paper sludge ash to produce a low cost concrete by blending various ratios of cement with paper sludge ash and to reduce disposal and pollution problems due to waste paper sludge ash. The innovative use of waste paper sludge ash in concrete as a supplementary cementitious material was tested as an alternative to fibre reinforced concrete. In this study waste paper sludge ash was partially replaced from 5%, 10%, 15% in cement to get optimum point and from this optimum point addition of glass fibres with different proportions i.e from 0.1%, 0.2%, 0.3%, 0.4% and also steel fibres with different proportions i.e from 0.5%, 1%, 1.5%, 2% are used in concrete for M25 mix and tested for its compressive strength, splitting tensile strength and flexural strength up to 28 days of strength and compared with conventional concrete. Durability tests are also conducted for these mixes with 5% of H2So4 and HCl. Test results indicate that use of waste paper sludge ash in concrete has improved the performance of concrete in strength aspect
Advanced Materials Research, 2013
Performances of lightweight foamed concretes that are made from partial substitution of waste clay brick as coarse aggregate has been investigated in this study. The research aims were to identify the properties and characteristic of lightweight foamed concrete using waste clay brick as alternative materials to reduce the depletion of normal coarse aggregate from granite. Four different percentages of concrete mixtures using new coarse aggregate have been prepared that consist of 25%, 50%, 75%, and 100% waste clay brick. Foamed were injected into concrete mixture to produce lightweight concrete with appropriate proportions. The samples have undergone several testing including compression test, water absorption test, workability test and density test. From the results obtained, lightweight concrete that were produced with 25% substitution of waste clay brick showed the highest compressive strength of 25 MPa with density of 1647 kg/m 3 .