the strength characteristics of mortar concretes

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Jan 01, 2010  Strength characteristics of polymer mortar and concrete using different compositions of resins derived from post-consumer PET bottles ... have shown that it is possible to use plastic waste in concretes or mortars as a binder thus replacing ... The strength characteristics of the polymer mortar and concrete have been assessed through ...

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STRENGTH CHARACTERISTICS OF MORTAR CONTAINING

STRENGTH CHARACTERISTICS OF MORTAR CONTAINING 93 Figure 6. Ultrasonic pulse velocity (UPV) of concretes containing varying amounts of MK. 4. Conclusion Replacing cement with up to atleast 20% MK causes increase in strength compared to the control mix. However, using more than 20% MK as partial cement replacement does not cause further ...

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May 01, 2011  Research highlights An experimental study was conducted on high strength cement mortar (HSCM) reinforced with steel fibres and hybrid fibres consisting of steel fibre, palm fibre and synthetic fibre (Barchip). Some different tests were determined to study the effect of the hybrid fibres on the properties of HSCM. The results showed that hybridization of fibres in the quantities 1.5% steel ...

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Aug 01, 2009  The flow value of mortar at fresh state was tested in accordance with ASTM C 1437. Also, the compressive strength of mortar at 3, 7 and 28 days was tested as per the ASTM C 109. The section of mortar tested was 50 × 50 × 50 mm. It was tested after hardening for 28 days and then being dried by heating 105 ± 5 °C for 24 h.

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Aug 20, 2020  The present study investigated the mechanical characteristics, strength development, hydration and microstructure of cement mortar containing oil-contaminated sand. The parameters investigated in the present study are the level of oil contamination, mixing method, water-to-cement (w/c) ratio, and the age of curing.

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STRENGTH CHARACTERISTICS OF MORTAR CONTAINING

STRENGTH CHARACTERISTICS OF MORTAR CONTAINING 93 Figure 6. Ultrasonic pulse velocity (UPV) of concretes containing varying amounts of MK. 4. Conclusion Replacing cement with up to atleast 20% MK causes increase in strength compared to the control mix. However, using more than 20% MK as partial cement replacement does not cause further ...

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Strength characteristics of polymer mortar and concrete ...

For each set, microscopic studies were conducted on neat resin and polymer mortar. The cube compressive strength of PM and PC so produced was found to vary from 15 to 28 MPa and from 20 to 42 MPa, respectively. The tensile strength of polymer concrete was either at par or more than the tensile strength of equivalent grade of cement concrete.

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Strength characteristics of mortar using shirasu as ...

The study aims at using Shirasu, a pyroclastic flow deposit, as an admixture in mortar replacing cement partially. In the study, performance of Shirasu in terms of strength is compared with fly ...

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Influence of Aggregate Characteristics on Concrete

Influence of Aggregate Characteristics on Concrete Performance Dale P. Bentz ... with the (range/average) ratio for 28-d compressive strength being 0.32 for the OPC concretes and 0.37 for those based on the ternary blend binder. With the exceptions of relating concrete modulus to ... Table 9. Mechanical Properties of OPC Concrete, Mortar, and ...

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Characteristics of mortar and concrete containing fine ...

2.4.1. Mortar The flow value of mortar was measured while changing the mixing ratio of WPLA to the volume of fine aggregate (0%, 25%, 50%, 75% and 100%). The flow value of mortar at fresh state was tested in accordance with ASTM C 1437. Also, the compressive strength of mortar at 3, 7 and 28 days was tested as per the ASTM C 109.

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Strength characteristics of different types of ...

3.1 Effect of CS and CGS on compressive strength of cement mortar The variations of compressive strength of cement mortar at 7, 28 and 120 days for 100% NS, CS and CGS at w/c of 0.5 are shown in table 4. Tables 5 and 6 showing compressive strength at 7, 28 and120 days for different replacement of NS by CS and CGS at constant w/c of 0.5.

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Characteristics of Wood Ash Cement Mortar Incorporating ...

Mar 17, 2021  Also, the flexural and compressive strength of WA cement mortar were higher with the incorporation of up to 2% nano-TiO 2. The water absorption of WA cement mortar was reduced when nano-TiO 2 was added with 2% incorporation having the best result. The incorporation of NT in WA cement mortar improved its workability and strength characteristics.

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Compressive strength, Bending and Fracture Characteristics ...

Oct 23, 2015  This article presented the compressive strength, modulus of rupture and fracture characteristics of high calcium fly ash (FA) geopolymer mortars containing Portland cement type I (PC) with different sodium hydroxide (NaOH) concentrations (6, 10 and 14 molars). PC was added at the dosages of 0, 5, 10 and 15 % by weight of solid powder binder. Sodium silicate (Na2SiO3) and NaOH

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Strengths and Failure Characteristics of Self-Compacting ...

In spite of the difference in the mix proportions of concretes, a good correlation could be written below to describe the relationship between characteristic length and compressive strength with of 0.86: where is characteristic length (mm) and is the mean cube compressive strength at 28 days (MPa).

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Study of recycled concrete aggregate quality and its ...

of the low strength concretes is high and hence, the mortar obtained with them is more porous. With regards to production, a number of works can be seen in the literature which proposes the improve-ment of recycled aggregate quality by reducing the adhered mortar using special production treatments. -F

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A LITERATURE REVIEW ON THE EFFECT OF METAKAOLIN AND

splitting, and bonding strength of the concretes were investigated. All tests were conducted at the end of 28 days of curing period. Analyses of variance on the experimental results were carried out and the levels of the significance of the variables on the mechanical characteristics of the concretes were determined. Moreover, correlation ...

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Mortar Constituent of Concrete in Compression

Mortar Constituent of Concrete in Compression by Ataullah Maher and David Darwin A study of the behavior of the mortar constituent of concrete under monotonic and cyclic uniaxial compression is summarized. Two mixes were used, with proportions corresponding to concretes with water-cement ratios of 0.5 and 0.6.

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(PDF) Properties of lightweight expanded polystyrene ...

In addition, on the strength characteristics of concretes of densities a normal concrete without fly ash (NC) made with 20 mm, ranging from 550 to 2200 kg/m3 through EPS replacement graded normal coarse aggregate was also used for a of the normal weight aggregate. comparison. 2.3.

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Mesoscale Modelling of Concretes Subjected to Triaxial ...

One study found that it is reasonable for the equivalent ITZ strength to be 70% of the mortar strength . For the current model of the concretes, the compressive strength of the equivalent ITZ was around 20 MPa, with the Young’s modulus set to 18 GPa. The aggregates’ properties could depend significantly on the natural types.

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Strength characteristic of polymer mortar and concrete ...

For each set, microscopic studies were con- ducted on neat resin and polymer mortar. The cube compressive strength of PM and PC so produced was found to

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(PDF) STRENGTH CHARACTERISTICS OF MORTAR CONTAINING HIGH ...

All other MK mixes yield an UPV values lower than the control. The trend in the UPV results is similar to those of the compressive strength shown in Figure 2. STRENGTH CHARACTERISTICS OF MORTAR CONTAINING 93 Figure 6. Ultrasonic pulse velocity (UPV) of concretes

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Mortar Constituent of Concrete in Compression

Mortar Constituent of Concrete in Compression by Ataullah Maher and David Darwin A study of the behavior of the mortar constituent of concrete under monotonic and cyclic uniaxial compression is summarized. Two mixes were used, with proportions corresponding to concretes with water-cement ratios of 0.5 and 0.6.

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(PDF) Adhesion characteristics of geopolymer mortar to ...

Adhesion characteristics of geopolymer mortar to concrete and rebars. ... *2 Concretes were immersed in water fo r 48 h before bonding . ... adhesion strength of GP mortar to concrete was further .

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Mortar in Tension - Warwick

presence of these voids leads to a reduction in strength of the mortar, as is covered in 1.3.5. Perhaps a more sensible approach is not to try to use Abram’s rule as a mathematical expression, but to understand the general principle that, for given concretes with other strength-determining factors not

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A LITERATURE REVIEW ON THE EFFECT OF METAKAOLIN AND

splitting, and bonding strength of the concretes were investigated. All tests were conducted at the end of 28 days of curing period. Analyses of variance on the experimental results were carried out and the levels of the significance of the variables on the mechanical characteristics of the concretes were determined. Moreover, correlation ...

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ENRICHMENT OF THE STRENGTH CHARACTERISTICS OF

increase the strength, durability and impact resistance, and improve appearance. Jo et al. (2006) investigated the mechanical properties such as flexural strength and compressive strength of polymer concrete using an unsaturated polyester resin based on recycled PET, which participates to dropping the cost of the material and saving energy.

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Evaluation of mechanical strength and durability ...

Apr 15, 2021  Also, adding an appropriate amount of SF could improve the mechanical strength and durability characteristics of the eco-friendly mortars. As a result, the mortar sample containing 30% GGBFS and 10% SF earned compressive and flexural strength values of approximately 49.2 and 13.8 MPa, respectively, at 56 days of curing age.

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INFLUENCE OF FLY ASH REPLACEMENT ON STRENGTH

The compressive strength developments of fly ash mortars and reference control mortar are presented in Table 2. It can be seen from the table that, the strength increased with curing age for all fly ash replacement percentages including reference mortar. Strength gain with age for all the concretes is shown in Figure 1. The

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(PDF) Effect of Stone Dust on Setting Time and Strength ...

The test results of compressive strength of mortar cubes are tabulated in Table 4. Also, in the Figures 3 and 4, graphs of setting time versus percentage of stone dust replacement and compressive strength of the mortar Table 4 :4Compressive Strength of Mortar Cubes, with Standard Deviation and Covariance values MPa at 28 days.

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Strength and Durability Characteristics of MPC Mortar Used ...

DOI: 10.9798/KOSHAM.2019.19.3.185 Corpus ID: 199187756. Strength and Durability Characteristics of MPC Mortar Used for Repairing Concrete Pavements @inproceedings{Oh2019StrengthAD, title={Strength and Durability Characteristics of MPC Mortar Used for Repairing Concrete Pavements}, author={Hongseob Oh and Y. Kim and Naksup Jang}, year={2019} }

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Mesoscale Modelling of Concretes Subjected to Triaxial ...

One study found that it is reasonable for the equivalent ITZ strength to be 70% of the mortar strength . For the current model of the concretes, the compressive strength of the equivalent ITZ was around 20 MPa, with the Young’s modulus set to 18 GPa. The aggregates’ properties could depend significantly on the natural types.

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Influence of Treatment Methods on the Strength and ...

May 05, 2015  This attached mortar results in higher porosity, higher water absorption rates, and thus a weaker interfacial zone between new cement mortar and aggregates, weakening the strength and mechanical performance of concrete made from recycled aggregate.

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Roles of mortar volume in porosity, permeability and ...

RESEARCH Open Access Roles of mortar volume in porosity, permeability and strength of pervious concrete Leo Gu Li1,2*, Jia-Jian Feng3, Bo-Feng Xiao1, Shao-Hua Chu4 and Albert Kwok Hung Kwan2 Abstract Pervious concrete is designed to be porous to allow permeation of water and air for combating the environmental

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