Impact of Quarry Dust and Fly Ash on the Fresh and Hardened Properties of Self Compacting Concrete (original) (raw)
Related papers
Fresh and Hardened Properties of SCC with Different Types of Fine Aggregates
Concrete is the most extensively used material in civil engineering construction so that considerable attention is taken for improving the properties of concrete with respect to strength and durability. In spite of different types of concrete available, Self compacting Concrete has its own advantages and applications in the field of Civil Engineering. This study is dealing with the behaviour of SCC incorporated with different types of filler materials which replaces fine aggregate partially in M30 mix. Foundry sand, quarry dust, saw dust and recycled waste glass are the materials for replacement of aggregate. Fly ash is used as mineral admixture and Super plasticizer is added to the mix to get flowability. Fresh properties will checked using slump cone, U-box , V-funnel and L box tests. Hardened properties such as compressive strength and split tensile strength are to be done to analyse strength parameters.
IRJET, 2020
This study presents an experimental investigation on self-compacting concrete (SCC) with fine aggregate (sand) replacement of a Quarry Dust (QD) (0%, 25%, 50%, 75%, 100%) and addition of mineral admixtures like Fly Ash (FA) and Silica Fume (SF) & chemical admixtures like super plasticizers (SP). After each mix preparation, 45 cubes specimens and 45 cylinders specimens are cast and cured. The specimens are cured in water for 3, 7 & 28 days. The slump, V-funnel and L-Box test are carried out on the fresh SCC and in harden concrete compressive strength and split tensile strength values are determined. Attempts have been made to study the properties of such SCCs and to investigate the suitability of Quarry Dust to be used as partial replacement materials for sand in SCC.
- Concrete can be considered as the most widely used in the construction industry. Concrete is a composite material made up of cement, sand, water and sometimes admixtures. Cement is the most active component and the use of large quantities of cement results in increasing CO2 emissions and as a consequence of the green house effect. On the other hand continuous use of natural aggregates causes environmental problems and it is also necessary to preserve the natural sources. The use of sustainable technologies such as supplementary materials is expected to positively affect the performance of concrete mixtures. Self-compacting concrete (SCC) is an innovative development of conventional concrete, which can be placed and compacted under its self weight with little or no vibration effort. This paper present the Mechanical and Durability properties of self compacting concrete using cementitious materials as a partial replacement of cement like Fly ash(15%), Silica fume(15%) and Metakaolin(5%) ; Artificial fine aggregate as natural fine aggregate having fineness modulus 2.7; Coarse aggregate of size 12mm and CONPLAST SP337 as Super-plasticizer. SCC containing different proportion of these mineral admixtures has been tested for slump flow, V-funnel, L-box, U-box and J-ring and found that the values are within the limits prescribed by EFNARC, 2002 method. The properties reported in this paper are the workability properties, Mechanical properties and Durability Properties. The Workability properties were investigated by Slump flow (filling ability), V-Funnel (filling ability) and L-Box test (passing ability). The Mechanical properties were tested for Compressive strength, Splitting Tensile strength and Flexural strength of 7 days, 28 days and 90 days were obtained. The Durability properties were tested for Water absorption and Acid tests. Key words: SELF COMPACTING CONCRETE, FLY ASH, SILICA FUME, METAKAOLIN, ARTIFICIAL FINE AGGREGATE, CONPLAST SP337.
IRJET- A REVIEW ON INFLUENCE OF QUARRY DUST AND METAKAOLIN IN SELF COMPACTING CONCRETE
IRJET, 2020
Self-Compacting Concrete is a type of concrete that can be placed in the form work and it passes through any obstruction by its own weight and does not require any vibration. It fill all spaces and voids, even in highly congested reinforced concrete members. SCC is produced using high-range water-reducing admixtures (HRWRA), viscosity-modifying admixtures (VMA), and well-graded aggregates. This journals is to find the effect of Quarry dust and Metakaolin in Self Compacting Concrete. The quarry dust is used as a replacement of fine aggregate and it is a by-product from the crushing process during quarrying activities, and this material helps to increase both compression and tensile strength. The metakaolin is used as a replacement of cement and it is obtained from natural Kaolin clay, by heating this clay at a temperature of 650-900 degree centigrade. Metakaolin helps to increase the compressive strength, spilt tensile strength, flexural strength and also the fresh properties of SCC.
IRJET- STUDY ON AERATED CONCRETE BLOCKS
IRJET, 2020
This paper summarises the current knowledge in the usage of light weight concrete masonry blocks. The paper comprises of masonry performance of such a construction material, different materials used for constructing light weight masonry blocks, and different tests to evaluate the performance of the masonry structures.
IRJET, 2020
This paper summarizes about foam concrete and its properties. Density value of foam concrete varies from of 400-1600 kg/m 3 , and therefore it can be economically used as structural members, partitions, embankment fills etc. It also provides good thermal insulation and material savings because of its porous structure. This paper also discusses about the partial substitution of cement with ground granulated blast furnace slag (GGBFS). Experimental studies proved that the partial substitution of cement with GGBFS did not affect the workability of the mix. Disposal of waste materials like plastic, rubber tires and quarry dust poses a serious threat to environment. Taking this into account this paper also studies the usage of these waste materials in foam concrete.
IRJET, 2022
In recent decades, the application of selfcompacting concrete (SCC) has arise in construction structures because of its high qualities to improve durability and decrease bleeding with good bonding with rebar. Besides, large amount of aggregates is required for the production of SCC. On the other hand, replacement of natural aggregate in SCC with waste materials can led to introduce ecological building materials. Walnut shell (WS) is one of the natural and agriculture waste materials which can be used as a replacement for aggregate in SCC. In this research, WS was used as a substituent for coarse aggregate and flyash as mineral admixture for constructing SCC by volume fractions of WS is 35%. The optimum percentage of flyash content is considered for the research. Fresh and hardened properties of SCC as well as lightweight self-compacting concrete (LWSCC) were investigated for the test mix and control one. The results showed that all tested properties have similar results of conventional SCC for flyash. However; the LWSCC can get good compressive strength for volume fraction of WS equal or more than 35%. Where, slump flow diameter (SFD), compressive strengths and split tensile strength for flyash were 560 mm, 34 MPa and 3.22 MPa respectively achieved at 35% ratio of WS. Flexural behaviour of reinforced concrete beam using this light weight aggregate is studied and compared with conventional SCC beam. Hence obtained similar results of conventional SCC.