### Influence of artificial sand on the properties of concrete ...

The only long term replacement for sand is Artificial sand. In the present study, an attempt has been made to experimentally study the properties of concrete and mortar by replacing the 100% ...

More### (PDF) STRENGTH AND WORKABILITY OF CEMENT

2015-2-25 Natural river sand is widely used as fine aggregates in preparation of conventional cement mortar. Due to extraction in excess, natural sand has become

More### (PDF) Effect of sand content on strength and pore ...

Sand content is an important parameter influencing the pore structure of cement mortar. Moreover, there is a good relationship between the pore structure and strength of cement mortar. Particle ...

More### Effect of Fine Aggregate Properties on Cement Mortar ...

2021-1-1 The Cement Mortar (C.M) mix of ratio 1:3 was made with water-cement ratio of 0.16. Mortar Cubes of size 70.6 mm × 70.6 mm × 70.6 mm confirming to IS: 10080–1982 was cast for to test compressive strength and cylindrical mortar samples of diameter 100 mm with thickness of 50 mm were used for sorptivity test.

More### Effect of sand content on strength and pore structure of ...

2017-5-3 The effects of four sand contents on the compressive, flexural and splitting-tensile strength of cement mortars were evaluated. Moreover, we experimentally investigated the pore structure of cement mortar brought about by changing the sand content and water/cement ratio. The changes in the pore structure were quantified by measuring the porosity and pore size distribution obtained by using ...

More### Influence of cement/sand ratio on behavior of cement

[Show full abstract] of mortar cubes at 28 days, effect on strength with the application of different curing compounds and methods of structural grade mortar mixes with cement: sand ratio 1:2.75 ...

More### Study of the effects of fine coral powder and salinity on ...

The coral powder and salt contained in the coral sand-seawater cement mortar have a significant effect on the void distribution, cemented effect and mechanical behaviours. Thus, the mechanisms for the influences of coral powder content and salinity were investigated by a series of piezoelectric transducer (PZT) tests and uniaxial compressive ...

More### Influence of Pore Structure on Compressive Strength of ...

This paper describes an experimental investigation into the pore structure of cement mortar using mercury porosimeter. Ordinary Portland cement, manufactured sand, and natural sand were used. The porosity of the manufactured sand mortar is higher than that of natural sand at the same mix proportion; on the contrary, the probable pore size and threshold radius of manufactured sand mortar are finer.

More### The effects of nano-calcined kaolinite clay on cement ...

2016-1-15 Based on the former research , it was obtained that the chloride diffusion coefficient of cement mortar (D Cl −) with 1% clay is decreased by 29.03% and 20.80% at 28 and 56 curing days, while the 28-day D Cl − of cement mortar with 5% clay is decreased by 53.03%. To detect the effect of NKC on the acid resistance of the cement mortar, we replaced 1%, 3%, and 5% of the cement by weight with ...

More### Influence of artificial sand on the properties of concrete ...

The only long term replacement for sand is Artificial sand. In the present study, an attempt has been made to experimentally study the properties of concrete and mortar by replacing the 100% ...

More### Study the effect of partially replacement sand by waste ...

2017-12-5 Furthermore, the effect of density, absorption, and compressive strength of cement mortar were also obtained.Ordinary Portland cement from Kufa Cement Plant was used with a water cement ratio of 0.48 and a mix proportion of 1:3, also six percentages of pistachio shells were used (10, 20, 30, 40, 50 and 60% by weight of fine aggregate).A total ...

More### Effects of SP on flowability and cohesiveness of cement ...

2013-11-1 A number of cement-sand mortar samples were produced and tested for their flowability in terms of flow spread and flow rate, and for their cohesiveness using a microversion of the sieve segregation test. The results showed that the effects of SP on flowability and cohesiveness are dependent not only on the SP dosage but also on the water content.

More### Filler effect of fine particle sand on the compressive ...

2011-5-26 The river sand, which is a non-pozzolanic material, was ground into 3 different particle sizes. Portland cement type I was replaced by the ground river sands at 10wt%–40wt% of binder to cast mortar. Compressive strengths of mortar were investigated and the filler effect of different fine particles of sand on the compressive strength of mortar was evaluated. The results show that the ...

More### Effect of Fly Ash on Mortar Mixes with Quarry Dust as Fine ...

2014-3-27 2.2. Mortar Mixes. Two control mixes, namely, 1 : 3 cement sand mortar mix, QC series, with 0, 20, 50, and 100 percent partial replacement by weight of natural sand with quarry dust and 1 : 3 cement sand mortar mix with 20% partial replacement by weight of natural sand with quarry dust which was further modified by replacing 0%, 15%, 20%, 25%, and 30% cement with low calcium fly ash by

More### Bacteria incorporated with calcium lactate pentahydrate to ...

2020-10-21 Stereomicroscopic images of the self-healing process for 28 days on the artificial crack of mortar specimens (from Brazilian test) in the absence (a) and presence (b)

More### Influence of Pore Structure on Compressive Strength of ...

This paper describes an experimental investigation into the pore structure of cement mortar using mercury porosimeter. Ordinary Portland cement, manufactured sand, and natural sand were used. The porosity of the manufactured sand mortar is higher than that of natural sand at the same mix proportion; on the contrary, the probable pore size and threshold radius of manufactured sand mortar are finer.

More### The Effect of Water to Cement Ratio on Early Age ...

2016-5-24 Mortar:effect of constant w/c ratio and increasing s/c ratio. Ultrasonic Pulse Velocity (m/s) Ultrasonic Pulse Velocity (m/s) 1400. 1200. 1000. 800. 600. 400. 200. 0. 0 50 100 150 200 250 300 350 400. Time (min.) sand to cement ratio. 0.25 sand to cement ratio 0.5 sand to cement ratio 3. Figure 3: Influence of s/c ratio on Evolution of UPV with ...

More### The effects of nano-calcined kaolinite clay on cement ...

2016-1-15 Based on the former research , it was obtained that the chloride diffusion coefficient of cement mortar (D Cl −) with 1% clay is decreased by 29.03% and 20.80% at 28 and 56 curing days, while the 28-day D Cl − of cement mortar with 5% clay is decreased by 53.03%. To detect the effect of NKC on the acid resistance of the cement mortar, we replaced 1%, 3%, and 5% of the cement by weight with ...

More### Effect of Rice Husk on the Mechanical Properties of

2020-7-15 This paper presents an experimental study on effect of rice husk on the mechanical properties of cement-based mortar. Cement-based mortar enhanced with rice husk between 0 and 2% by weight was cured and tested on 7, 14, 21 and 28 days for

More### Effect of replacement of natural sand by manufactured

2017-2-17 Effect of replacement of natural sand by manufactured sand on the properties of cement mortar Priyanka A. Jadhav, Dilip K. Kulkarni International Journal of Civil and Structural Engineering 624 Volume 3 Issue 3 2013 Table 3: Test results of cement mortar of proportion 1:2 (1 Mpa= 0.1450 ksi) Percentage replacement

More### Effect of Fly Ash on Mortar Mixes with Quarry Dust as Fine ...

2014-3-27 2.2. Mortar Mixes. Two control mixes, namely, 1 : 3 cement sand mortar mix, QC series, with 0, 20, 50, and 100 percent partial replacement by weight of natural sand with quarry dust and 1 : 3 cement sand mortar mix with 20% partial replacement by weight of natural sand with quarry dust which was further modified by replacing 0%, 15%, 20%, 25%, and 30% cement with low calcium fly ash by

More### Mortar in Tension - Warwick

2008-5-27 significant effect for failure in flexure: a rough surface will contribute stress concentration effects in the area of greatest stress. 1.3.2 Sand-cement ratio The received wisdom is that increasing the cement content of a concrete will increase its strength. Whilst in many practical cases this is true, it arises from secondary effects.

More### Filler effect of fine particle sand on the compressive ...

2011-5-26 The river sand, which is a non-pozzolanic material, was ground into 3 different particle sizes. Portland cement type I was replaced by the ground river sands at 10wt%–40wt% of binder to cast mortar. Compressive strengths of mortar were investigated and the filler effect of different fine particles of sand on the compressive strength of mortar was evaluated. The results show that the ...

More### Influence of Species of Manufactured Sand on Basic ...

The influences of sand-cement ratio on bulk density, fluidity, compressive strength, flexural strength of mortar of river sand, limestone manufactured sand (MA), quartzite MA, granite MA were studied compresively in the paper. The results show that bulk density of mortar reaches to maximum if sand-cement ratio of mortar of river sand is 2.73 and the ratios of mortar of manufactured fine sands ...

More### The Effect of Water to Cement Ratio on Early Age ...

2016-5-24 Mortar:effect of constant w/c ratio and increasing s/c ratio. Ultrasonic Pulse Velocity (m/s) Ultrasonic Pulse Velocity (m/s) 1400. 1200. 1000. 800. 600. 400. 200. 0. 0 50 100 150 200 250 300 350 400. Time (min.) sand to cement ratio. 0.25 sand to cement ratio 0.5 sand to cement ratio 3. Figure 3: Influence of s/c ratio on Evolution of UPV with ...

More### Influence of Pore Structure on Compressive Strength of ...

This paper describes an experimental investigation into the pore structure of cement mortar using mercury porosimeter. Ordinary Portland cement, manufactured sand, and natural sand were used. The porosity of the manufactured sand mortar is higher than that of natural sand at the same mix proportion; on the contrary, the probable pore size and threshold radius of manufactured sand mortar are finer.

More### Effect of Particle Size Distribution of Sand on Mechanical ...

2020-1-1 Despite the many research studies on the effect of the particle size distribution (PSD) of sand and microsilica content on the mechanical properties of cement mortar, there has not been a comprehensive study investigating the effect of the PSD curve corresponding to 10% of fines, microsilica content, curing time, and watercement ratio (w/c) on ...

More### Effect of grounded bone powder addition on the

2014-5-15 Effect of grounded bone powder addition on the mechanical properties of cement mortar M. Kotb1, M. Assas2 H. Abd-Elrahman1 1Civil Engineering Department, Al-Azhar University, Egypt 2Civil Engineering Department, Umm Alqura University, Saudi Arabia Abstract This paper presents an experimental investigation on the effect of using bone

More### Effect of Rice Husk on the Mechanical Properties of

2020-7-15 This paper presents an experimental study on effect of rice husk on the mechanical properties of cement-based mortar. Cement-based mortar enhanced with rice husk between 0 and 2% by weight was cured and tested on 7, 14, 21 and 28 days for

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