Comparative study on strength properties of cement mortar by partial replacement of cement with ceramic powder and silica fume

2018 ◽  
Author(s):  
Ch. Himabindu ◽  
Ch. Geethasri ◽  
N. Hari
Keyword(s):  
Comparative Study ◽  
Silica Fume ◽  
Cement Mortar ◽  
Ceramic Powder ◽  
Strength Properties ◽  
Partial Replacement

Effect of steel slag powder, fly ash, and silica fume on the mechanical properties and durability of cement mortar

2019 ◽  
Vol 9 (9) ◽  
pp. 1049-1054
Author(s):  
Yunxia Lun ◽  
Fangfang Zheng
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Silica Fume ◽  
Cement Mortar ◽  
Steel Slag ◽  
Mineral Admixtures ◽  
Partial Replacement ◽  
Slag Powder ◽  
Steel Slag Powder

This study is aimed at exploring the effect of steel slag powder (SSP), fly ash (FA), and silica fume (SF) on the mechanical properties and durability of cement mortar. SSP, SF, and FA were used as partial replacement of the Ordinary Portland cement (OPC). It was showed that the compressive and bending strength of steel slag powder were slightly lower than that of OPC. An increase in the SSP content caused a decrease in strength. However, the growth rate of compressive strength of SSP2 (20% replacement by the weight of OPC) at the curing ages of 90 days was about 8% higher than that of OPC, and the durability of SSP2 was better than that of OPC. The combination of mineral admixtures improved the later strength, water impermeability, and sulfate resistance compared with OPC and SSP2. The compressive strength of SSPFA (SSP and SF) at 90 days reached 70.3 MPa. The results of X-ray diffraction patterns and scanning electron microscopy indicated that SSP played a synergistic role with FA or SF to improve the performance of cement mortar.

scholarly journals Experimental investigation on Ferrocement slab using partial replacement of cement by ceramic powder

2021 ◽  
Vol 2070 (1) ◽  
pp. 012195
Author(s):  
R G Dhilip Kumar ◽  
Binu Sukumar ◽  
A Hemamathi ◽  
P Ram Shankar ◽  
Sharanya Balki
Keyword(s):  
Experimental Investigation ◽  
Compressive Strength ◽  
Cement Mortar ◽  
Ceramic Powder ◽  
Single Layer ◽  
Wire Mesh ◽  
The Other ◽  
Partial Replacement ◽  
Flexural Behaviour ◽  
Mix Proportion

Abstract In this study, flexural behaviour of the Ferrocement panels of size 500 mm x 500 mm x 50 mm with partial replacement of ceramic powder under monotonic loading is observed. All the Ferrocement panels were casted with cement mortar of mix proportion 1:4 with w/c ratio of 0.45 and all the specimens were casted with single layer of galvanized welded wire mesh of 2mm diameter with mesh opening of 12.5 mm x 12.5 mm. The ceramic powder is administered at various percentage replacement of cement by weight and the adopted variations are 0%, 5%, 10% and 15%. Compressive strength of the mortar mix for all the different ratios of ceramic powder was carried out and the results were discussed. It can be concluded that the Panel with 10% replacement of ceramic powder offers appreciable results than the other panels.

Effect of micro-silica fume and fly ash as a partial replacement of cement on fresh and early strength properties of concrete

2018 ◽  
Author(s):  
Khalid M. Breesem ◽  
Salim H. Jassam ◽  
Amar A. Hussein ◽  
Omar S. Dahham ◽  
N. Z. Noriman ◽  
...  
Keyword(s):  
Fly Ash ◽  
Silica Fume ◽  
Strength Properties ◽  
Partial Replacement ◽  
Early Strength ◽  
Micro Silica

scholarly journals Effect of Foundry Sand and Mineral Admixtures on Mechanical Properties of Concrete

2018 ◽  
Vol 64 (1) ◽  
pp. 117-131 ◽  
Author(s):  
K.V.S.Gopala Krishna Sastry ◽  
A. Ravitheja ◽  
T.Chandra Sekhara Reddy
Keyword(s):  
Fly Ash ◽  
Silica Fume ◽  
Strength Properties ◽  
Sem Analysis ◽  
Mineral Admixtures ◽  
Partial Replacement ◽  
Maximum Increase ◽  
Conventional Concrete ◽  
Foundry Sand ◽  
Fine Aggregates

Abstract Foundry sand waste can be utilized for the preparation of concrete as a partial replacement of sand. The strength properties of M25 grade concrete are studied with different percentages of replacement of fine aggregates by foundry sand at 0%, 10%, 20%, 30%, 40%, and 50%. The optimum percentage of foundry sand replacement in the concrete corresponding to maximum strength will be identified. Keeping this optimum percentage of foundry sand replacement as a constant, a cement replacement study with mineral admixtures such as silica fume (5%, 7.5%, 10%) and fly ash (10%, 15%, 20%,) is carried out separately. The maximum increase in strength properties as compared to conventional concrete was achieved at 40% foundry sand replacement. Test results indicated that a 40% replacement of foundry sand with silica fume showed better performance than that of fly ash. The maximum increase in strengths was observed in a mix consisting of 40% foundry sand and 10% silica fume. SEM analysis of the concrete specimens also reveals that a mix with 40% foundry sand and 10% silica fume obtained the highest strength properties compared to all other mixes due to the creation of more C-H-S gel formations and fewer pores.

scholarly journals Assessment of Carbonation on Strength Properties of Concrete Made of Mineral Admixtures

2019 ◽  
Vol 8 (12) ◽  
pp. 1832-1835
Keyword(s):  
Blast Furnace ◽  
Reinforced Concrete ◽  
Silica Fume ◽  
Blast Furnace Slag ◽  
Strength Properties ◽  
Mineral Admixtures ◽  
Partial Replacement ◽  
Granulated Blast Furnace Slag ◽  
Almost All ◽  
Furnace Slag

Concrete is one of the most suitable materials in the world which are used for construction. It becomes more versatile because of his suitability in almost all situations. Reinforced structures are subject to corrosion by various means. Carbonation is one of these means that causes corrosion of reinforced concrete structures. The service life of the structures has been reduced due to the deterioration of the structures because of the corrosion of the reinforced concrete due to carbonation. This paper focuses on the effect of carbonation on the mechanical properties of concrete composed of mineral admixtures, such as ground granulated blast furnace slag and silica fume, by partial replacement of the cement. In this experiment, silica fume replaced cement in 5%, 10%, 15% and ground granulated blast furnace slag replaced the cement in 10%, 20%, 30%. Samples such as cubes, cylinders and prisms were casted and cured. Certain number of these specimens were also placed in carbonation chamber and tested for compressive strength, tensile strength and flexural strength. Normal concrete samples are also tested and the results are compared.

scholarly journals Potential Utilization of Micro Silica as a Limited Substitution with Addition of Glass and Polypropylene Fiber for M40 Concrete

2019 ◽  
Vol 8 (12) ◽  
pp. 4961-4967
Keyword(s):  
Silica Fume ◽  
Polypropylene Fiber ◽  
Strength Properties ◽  
Mix Design ◽  
Waste Materials ◽  
Partial Replacement ◽  
Conventional Concrete ◽  
Waste Products ◽  
Concrete Mix Design ◽  
Micro Silica

Nowadays there is an increase in environmental knowledge and its effects on the environment, the disposal of waste products from industries are being big deal to manage. Such waste materials cannot be dumped on any lands, due to this reason it is difficult to manage waste materials. After so many investigations finally conclude that waste material can be utilized in the construction as additives, such materials can reduce the cost of construction and gives more strength compared to conventional concrete. These products can be utilized to partial replacement of cement. In this investigation, we are using Silica fume/ Micro silica as a partial replacement of cement. From this combination, we can improve the strength, workability and resist cracks in concrete. To reduce water content PAR PLAST SPL super plasticizer is used. The present investigation is to determine the strength behavior of Silica fume/Micro silica and fibres in Rigid pavement. The concrete mix design is as per IRC 44 2009, and it is proportioned to set target mean strength as 40 Mpa. The water-cement ratio as per mix design is 0.38. Specimens was casted and cured for various percentages that are 0%, 2.5%, 5%, 7.5% and 10%. With this constant percentage of fibres was added that is 1% Polypropylene fibre and 0.5% Glass fibre. This specimen tested for 3, 7, 28 days for cubes and 7, 28 days for beams and cylinders. From this investigation, Cement can be replaced with Micro silica to improve strength properties like bending and tensile strength. The Silica fume/ micro silica found at 7.5% optimum dosage, up to this percentage cement can be replaced.

scholarly journals Strength Behaviour of Cement Mortar with Marble Powder as Partial Replacement of Cement

2019 ◽  
Vol 9 (1S3) ◽  
pp. 405-410
Keyword(s):  
Tensile Strength ◽  
Cement Mortar ◽  
Strength Properties ◽  
Partial Replacement ◽  
Test Results ◽  
Strength Determination ◽  
Marble Powder ◽  
Guide Lines ◽  
Split Tensile Test ◽  
Flexure Test

In this study, the strength properties of marble powder in cement mortar have been investigated. The strength studies include compression test, split tensile test and flexure test. To perform these tests, a cement mortar is prepared in the ratio of 1:3 as per the Indian Standard guide lines. In this mortar, the cement is replaced by marble powder by 5%, 10%, 15%, 20%, 25%, 30%, 35% and 40%. For testing the compression strength behaviour of marble powder in replacement of cement, cement mortar cube specimens of size 7.07 cm x 7.07 cm x 7.07 cm are cast for all the said replacement ratios. After 7 and 28 days of curing, the specimens are tested for compression. Similarly for testing of splitting tensile strength, cylindrical mortar specimens of size 60mm dia. and 120mm are cast and tested at 7 and 28 days. For flexural strength determination, beam specimens of size 160mm x 40mm x 40mm are cast and these specimens are tested after the required days of curing. From the test results, it has been found that the cement mortar mix with 10% marble powder gives better results in compression, split tension and in flexure results. To determine the oxide composition of marble powder, XRF test was performed.

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