Compressive strength and shrinkage of mortar containing various amounts of mineral additions

Itim, Ahmed; Ezziane, Karim; Kadri, El-Hadj

doi:10.1016/j.conbuildmat.2011.03.055

Cited by 94 publications

(49 citation statements)

References 17 publications

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“…Thus, after 10 days, the total shrinkage is 1042 μm/m, 946 μm/m, 865 μm/m, 831 μm/m, 795 μm/m and 735 μm/m respectively for 0% T, 10% T, 15% T, 20% T, 25% T, 30% T. This result agrees with those in the literature [29,30] which showed that the addition of slow-acting pozzolanic additions reduces the shrinkage of mortars by increasing the size of the capillary pores, which would reduce the capillary pressure and therefore, the shrinkage. Yilmaz and Ucar [31] also reported similar results for Tuff (clinoptilolite) and attributed this to the reduction in water evaporation used for the formation of new hydrates.…”

supporting

confidence: 83%

Physical Mechanical Properties and Durability of Mortars Containing Tuff from Burkina Faso as Partial Substitution of CEM I

Kabre¹,

Savadogo²,

Lawane³

et al. 2018

AJCEA

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This paper presents the feasibility of using locally available limestone Tuff in Burkina Faso as a partial replacement for CEM I artificial Portland cement. To this end, standard tests were carried out in the laboratory on mortars containing variable proportions of Tuff in partial substitution of CEM I cement. These include heat of hydration, setting time, total shrinkage, compressive strength, capillary absorption and resistance to acid attack. The experimental results obtained show that Tuff can be used as a natural pozzolan. It is also noted that the incorporation of Tuff into cement has virtually no influence on the transfer properties of mortars. However, at a rate above 15% partial substitution of CEM I, the mechanical strength of mortars is considerably reduced. This is probably linked to the finesse of the Tuff used. A finer shredding improved the mechanical activity index. However, we note a better resistance to acid attack (sulphuric acid that can come from acid rain) of mortars containing Tuff compared to mortar based on artificial Portland cement. All these results have shown that the Tuff used in this work can be a solution for reducing CO 2 emissions in cement production and also in reducing the price of cement in Burkina Faso.

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supporting

confidence: 83%

Physical Mechanical Properties and Durability of Mortars Containing Tuff from Burkina Faso as Partial Substitution of CEM I

Kabre¹,

Savadogo²,

Lawane³

et al. 2018

AJCEA

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“…It offers many advantages such as re-use of industrial wastes, decreased CO 2 emissions during clinkerization (by limiting the clinker content in the cementitious material) and enhanced material properties such as workability and long-term compressive strength (Dubovoy et al 1986;Itim et al 2011). It is recommended for massive structures such as dams and bridges and for structures in aggressive environments (farm silos, water-treatment plants, mining) because of its low heat release, its high resistance to sulfate attack and chloride diffusion resulting from its low long-term porosity (Darquennes et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Early-Age Self-Healing of Cementitious Materials Containing Ground Granulated Blast-Furnace Slag under Water Curing

Olivier

Darquennes

Benboudjema

et al. 2016

ACT

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“…It can be therefore concluded that, in terms of the self weight, a water curing period of 7 days or 14 days leads to better values. Of course, air curing conditions would lead to even lower values for the self weight but it would be quite detrimental in terms of shrinkage cracking [26]. Even though the obtained results so far are encouraging, the authors deem necessary that further research work should be conducted in this field, especially in the direction of long term influence of novel Cementitious material and ordinary Portland cement on the mechanical properties of mortars.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the Load Carrying Capacity of Short RC Columns Strengthened with a Novel Cementitious Material by Using FEA

Toma

Covatariu

Lungu

et al. 2013

AEF

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Numerical simulations based on the Finite Element Method (FEM) have become an important tool in studying various phenomena of interest to both researchers and practitioners alike. The recent advances in computational power coupled with accurate mathematical models have made FEM an indispensable tool for investigating complex loading states and material behavior that are frequently met in civil engineering. Strengthening of existing RC columns is becoming a pressing issue in the field of civil engineering due to the necessity of meeting new safety requirements for the buildings located in active seismic areas. Jacketing is a widely used method for strengthening of reinforced concrete columns showing good results in terms of increased strength and stiffness but with the addition of some unwanted effects amongst which the added dead weight is of primary importance in case of an earthquake. The paper presents the results obtained by means of Finite Element Analysis (FEA) on the load carrying capacity of short RC columns strengthened with a novel Cementitious material that may be the solution to lighter structures and lower added costs compared to other existing methods.

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Compressive strength and shrinkage of mortar containing various amounts of mineral additions

Cited by 94 publications

References 17 publications

Physical Mechanical Properties and Durability of Mortars Containing Tuff from Burkina Faso as Partial Substitution of CEM I

Physical Mechanical Properties and Durability of Mortars Containing Tuff from Burkina Faso as Partial Substitution of CEM I

Early-Age Self-Healing of Cementitious Materials Containing Ground Granulated Blast-Furnace Slag under Water Curing

Evaluation of the Load Carrying Capacity of Short RC Columns Strengthened with a Novel Cementitious Material by Using FEA

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