Effects of Wood Ash and Waste Glass Powder on Properties

Wood Ash

The potential for using fly ash as a supplementary cementing Wood Ash material in concrete has been known almost since the beginning of the previous century. Fly ash was used Wood Ash as a supplementary cementing material (SCM) in the production of Portland cement concrete. A supplementary cementing material, when used in conjunction with Portland cement, contributes to the properties of the hardened concrete through hydraulic or pozzolanic activity, or both. In this study, the fly ash and waste glass powder were used in concrete blocks to study the improvement of concrete in terms of workability and strength. Therefore, an experimental study will be conducted to measure the engineering properties of cured concrete. In this research, local raw material from Jaresh area was used.

In recent decades, research has demonstrated that high dosage levels of fly ash (40% to 60%) can be used in structural application producing concrete with good mechanical properties and durability (Marceau 2002) [1] . The use of good quality fly ash with a high fineness and low carbon content reduces the water demand of concrete and, consequently, the use of fly ash should permit the concrete to be produced at lower water content when compared to a Portland cement concrete of the same workability. Although the exact amount of water reduction varies widely with the nature of the fly ash and other parameters of the mix. A well-proportioned fly ash concrete mixture will have improved workability when compared with a Portland cement concrete of the same slump. This means that, at a given slump, fly ash concrete flows and consolidates better than a conventional Portland cement concrete when vibrated. The use of fly ash also improves the cohesiveness and reduces segregation of concrete. The spherical particle shape lubricates the mix rendering it easier to pump and reducing wear on equipment. The main objective of this paper was to develop a mixture design of concrete with fly ash and waste glass powder to produce concrete with high compressive strength comparing to normal concrete samples. Another objective was to reduce some industrial waste material on the environment such as fly ash and waste glass, which causes environment pollution.

Baboo Rai et al. (2011) [2] used marble powder and its granules as partial replacement for the fine aggregate. Using these materials, cement mortar and concrete were prepared. Afterwards, the relative workability test, compressive strength test and flexural strength test were conducted. Based on the test results, they concluded that when the percentage of marble powder added in concrete increases, the compressive strength and flexural strength of concrete also increase.

Akshay C. Sankh et al. (2009) [3] stated that there is a need to find the new alternative material to replace the river sand, such that excess river erosion and harm to environment is prevented. Many researchers are finding different materials to replace sand and one of the major materials is quarry stone dust. Using different proportion of these quarry dust along with sand, the required concrete mix can be obtained. This paper presents a review of the different alternatives to natural sand in preparation of mortar and concrete. The paper emphasizes on the physical and mechanical properties and strength aspect on mortar and concrete.

Belachia M. et al. (2011) [4] used the recycled aggregates in the making of hydraulic concrete. Properties like density, workability, compressive strength and flexural strength of the hydraulic concrete were found and compared with the properties of conventional concrete. The optimum percentage of recycled aggregate found from the comparative study was 25% for the ultimate strength and 50% for the ultimate density.

Goliya, H.S. et al. (2008) and ACI Committee 232 [5] [6] conducted a research with the aim of identifying a suitable alternative for concrete ingredients. Cement is replaced by fly ash, stone dust, ground granulated blast-furnace slag etc. and sand is replaced by stone dust, fly ash etc., Ravina, D. and Mehta, P. K. [7] [8] . to find out the strength properties, such as the compressive strength and flexural strength of concrete, and this through a partial replacement of both cement and sand by glass powder as a pozzolana and by pond ash in concrete respectively.

Leema Rose. A et al. (2011) [9] showed that glass powder is obtained as a waste material after the extraction and processing of glass to form fine particles less than 4.75 mm. Glass powder has been used in large scale in highways as a surface finishing material and also used in the manufacture of hollow blocks and light weight concrete prefabricated elements.

Monica et al. (2013) and ACAA, 2005 Coal Combustion Product [10] [11] used various alternate materials like marble powder, quarry dust, wood ash and paper pulp in concrete as a replacement of cement in making concrete. In this paper, they concluded that, by using these materials in concrete, nearly 14% to 20% of cement was saved. Chemical properties of concrete like sulfate attack resistance and alkali aggregate resistance were increased while using these materials. By using these waste materials in concrete, the problems in disposal of these materials on lands get reduced and the environmental pollution is prevented.