Key words:: Experimental Study, Partial Replacement, Cement, Fly Ash, Sand, M sand. 1.INTRODUCTION Concrete is the most widely used construction material in civil engineering industry because of its high structural strength, stability, and malleability. Recent technological developments have shown that these materials can be used as
Fly ash as a sand replacement material in concrete - A study N.P. Rajamane and Ambily P.S. The study presented in this paper shows that fly ash can partially replace sand in cement concretes. This ...
So, untreated desert sand usually doesn't meet the technical requirements to be used as a pavement subgrade [11]. Desert sand is becoming more popular as a building material because it makes mortar stronger both physically and chemically [12]. Desert sand concrete (DSC) has the same level of strength as regular concrete [13], [14], [15].
Abstract: The abandonment of coal energy plants in the near future will result in a substantially. reduced availability of the coal fly ash broadly used as an e ffi cient supplementary material ...
Replacement of 50% sand with fly ash can save about 0.4 m3 sand. Comparison of cost per N/mm2 compressive strength has …
Fly ash is also a filler in paints, adhesives, and metal and plastic composites. It's commonly used as structural fill for road construction and fly ash can be used to make bricks, ceramic tiles, plaster, Portland cement, and ready-mix cement. Other building materials that may contain fly ash include hot mix asphalt, grout fill, wallboard ...
Alternative fine aggregate, such as replacing river sand with copper slag, bottom ash, used-foundry sand, granite powder waste, dune sand, etc. [6] [7] [8][9][10]. The workability and strength of ...
The use of fly ash as replacement of sand is an economical solution for making green and denser concrete. The paper presents a concrete mix design procedure for partial replacement of sand with ...
It was found that adding of 10% fly ash as sand replacement content resulted in better compressive strength of OPS LWAC, which is higher than the control mix. OPS at the palm oil mill. Figure 2.
Hence, the major aim of this research study was to investigate their use in concrete to replace sand with bottom ash waste and cement with fly ash. Concrete specimens were prepared incorporating 0, 20, 50, 75 and of bottom ash replacing sand and 20% of coal fly ash by mass, as a substitute for Ordinary Portland cement.
Seven-, 28-, and 91-day compressive strength test results of reference mix and fly ash-based mixes containing CS and CBA as natural sand with fly ash as cement replacement varies from 0 to 30% are presented in Fig. 8. The compressive strength of reference concrete after 7 days of curing was 51.84% of its strength after 28 days of curing.
those with sand replaced partially by granulated blast furnace slag with the results of the fly ash bricks made with zero replacement of Sand. AVAILABLE SIZES OF FLY ASH BRICKS The fly ash bricks are available in different sizes. The following are some of the sizes of fly ash bricks. 230×150×80 mm 230×150×100 mm 230×110×75 mm
This study examines the effects of adding fly ash (sand replacement) and polypropylene fibers to concrete with design densities of 1,000 and 1,500 kg/m3 on fresh state features (stability and ...
Abstract: In the present study the effects of fly ash as a replacement of sand in a concrete along with addition of glass fibre on physical and mechanical properties of concrete is investigated. Three different density of concrete as 1000kg/m3, 1300kg/m3, and 1600kg/m3 is prepared. The synthetic ing agent is …
Abstract—: In the present study the effects of fly ash as a replacement of sand in a concrete along with addition of glass fibre on physical and mechanical properties of concrete is investigated. Three different density of concrete as 1000kg/m3, 1300kg/m3, and 1600kg/m3 is prepared. The synthetic ing agent is used to ...
This paper investigates the possibility of using garnet waste as river sand replacement in high-strength alkali-activated mortars (AAMs) containing fly ash (FA) and ground blast furnace slag (GBFS). The garnet waste replacing river sand was used at varying levels of 0, 25, 50, 75, and , by weight.
Hundred percentage of replacement of cement with fly ash with alkaline solution is called green concrete also known as Geopolymer concrete [8]. ... Samples were prepared using fly ash, GGBS, M-Sand, Granite powder, sodium hydroxide, sodium Silicate and water. To prepare 10 M concentration to 16 M concentration of the alkaline …
The inference of the work is concluded that Fly ash, GGBS with GP as partial replacement to M Sand shall be used for construction application where the early gain of strength is recommended. Nevertheless, more studies have to be carried out for further conclusions in applications related to mixing at site, transportation and placement …
Vinay M, Dr. et al. [5] (APRIL 2015) In this experimental study, author used quarry dust as a replacement of natural sand and manufactured fly ash aggregates as partial replacement of granite aggregate in standard M20 grade concrete to find out strength of concrete. The manufactured fly ash aggregate were created by cement and fly ash mixer, in ...
Bottom Ash (BS) and Fly Ash (FS) 50 & 50: Reduced density due to pores, create a vent for fluid permeation, also decreased due to low density of fly ash and bottom ash. [11] EP and Pumice: 25, 50, 75, &100: Good low density in light weight concrete and also expanded perlite is 0.7 times not heavy than natural sand.
Abstract. The depletion of the natural resources and the growing demand for the natural river sand in both developing countries and developed countries paved way for the evolution of new trends in the complete and partial replacement of the natural sand …
The effects of modified fly ash (MFA) on the replacement rate of cement, the quality and replacement rate of recycled fine aggregates (RFA), the mechanical properties of concrete, such as ...
Fly ash's fine powder texture allows it to replace portions of both cement and natural sand in concrete mixtures. Several notable benefits arise from employing fly …
Fly ash is generally used as replacement of cement, as an admixture in concrete, and in manufacturing of cement. Concrete containing fly ash as partial to complete replacement of fine aggregate will improve its strength on longterm basis. In this investigation fly ash is used as sand replacement material. The material mix of proportion 1:1.58:3.2:0.48. …
This study was aimed to determine the effect of LFA (Lakhra Fly Ash) as partial replacement of cement in concrete. To conduct this study, a total of 72 standard concrete cylinders were cast with 1 ...
Abstract. This study investigates the influence of fly ash as a partial replacing sand material on the sulfate resistance of mortar. Fly ash replacement are …
The effect of fly ash content as partial sand replacement towards workability and compressive strength of OPS lightweight aggregate concrete were investigated. Four concrete mixes containing various percentage of fly ash that are 0%, 10%, 20% and 30% by weight of sand were used in the experimental work. All mixes were cast in form of …
The strength of cement substituted mortar decreases with the increase in fly ash amount, whereas the strength increases when the fly ash is blended as sand substitute. A mortar with highest strength (compressive strength = 30.2 Mpa; flexural strength = 7.0 Mpa) was obtained when the sand replacement ratio was 0.75%. The k …
The study conducted by Siddique et al. suggested replacement of natural sand by fly ash up to 40% [4]. If the natural sand is completely replaced by fly ash a large reduction in compressive strength (73.1%) and workability (13.4%) was reported bya Turhan Bilin et al. [7]. Thus, to utilize the large volumes of fly ash and to reduce the use …
This study examines the effects of adding fly ash (sand replacement) and polypropylene fibers to concrete with design densities of 1,000 and 1,500 kg/m3 on fresh state features (stability and ...