Application of nanotechnology in concrete and supplementary
The increasing research endeavors on nanotechnology encompasses a number of disciplines including the aspects of sustainable construction in civil and environmental engineering. Tremendous achievements have been reported on nanotechnology adoption on sustainable construction, but there are so much more to explore than has been achieved. …
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An experimental study on mechanical, shrinkage and
To ensure the montmorillonite clay can be coated well with the coarse aggregate, a small amount of water was added. Then all the coarse aggregates were dried naturally in the air before they were used to prepare concrete mixtures. Standard sand with particle size ranging from 0.08 mm to 2 mm according to ISO 679 [21] was used as the fine ...
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Effect montmorillonite clay as aggregate in lightweight …
Light weight concrete has many advantages that can be used in the construction of buildings. Perhaps one of the ... The aggregate resulting from the burnt Montmorillonite clay was used as coarse and fine aggregate as previously mentioned in the form of combined aggregate. Four mixtures were made as shown in Table 3.
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Can Bentonite Clay Be Used for Pottery Making?
Bentonite clay, also known as Montmorillonite clay, has been used for pottery making for thousands of years due to its unique properties that make it an excellent binder and plasticizer. 2. The name "bentonite" comes from Fort Benton in Wyoming, USA, where large deposits of this clay were first discovered in the 19th century.
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Effects of organo-modified montmorillonite on strengths and
Smectite clays such as montmorillonite (MMT) are frequently used as fillers or reinforcements in polymer/clay nano-composites (PCN) [10]. The typical chemical structure of MMT consists of an edge-shared octahedral sheet with aluminum or magnesium hydroxide and two silicate tetrahedral sheets with sodium or calcium cations, which can be ...
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Review Research progress on polycarboxylate based superplasticizers
The phenomenon can be ascribed to the fact that Ca-montmorillonite was used in the study instead of Na-montmorillonite which has been reported by many other researchers. The water displacement by PEO in interlayers is difficult as hydration energies of Ca 2+ (-553.6 kJmol −1 ) is higher than Na + cation (-261.9 kJmol −1 ).
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Clay as a Sustainable Binder for Concrete—A Review
Smectites (especially montmorillonite) have been widely used to produce organo-clays . Porosity and capillary pore size significantly affect the strength of cement-based material. Organo-modified clay, such as organo-modified montmorillonite (OMMT), can be used as fillers and reinforcement to reduce cement or concrete porosity .
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Montmorillonite clays in Portland clinker-reduced, non-clinker …
Activated and modified montmorillonites improve engineering performance of cements. Clays with various chemical and mineralogical compositions are an increasingly …
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Evaluation of Lightweight Concrete Using Expanded …
the impact of EPS as a coarse aggregate and montmorillonite as cement in concrete. Tests on concrete's workability, split tensile strength, compressive strength, and flexural strength ... content can be used. Non-structural EPS concrete can be made when the composition is increased above 30%. Anjan B K et al. (2019) studied the strength ...
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Can I use concrete as mortar?
Can I use mortar mix instead of concrete? No, you cannot use mortar mix instead of concrete. Concrete and mortar mix are both types of mixtures made out of cement, sand, and water, but they have different compositions and uses. Concrete typically contains a higher ratio of cement to sand, and it also usually contains aggregate such as gravel.
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Clay as a Sustainable Binder for Concrete—A Review
Organo-modified clay, such as organo-modified montmorillonite (OMMT), can be used as fillers and reinforcement to reduce cement or concrete porosity . The compressive strength of …
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Application of bentonite in cement-based composites: A review of
BT is a malleable clay with high absorbency, capable of expanding up to 20 times its initial size upon water contact. It is a natural pozzolan [13] and is often categorized into sodium (high-swelling), calcium (low-swelling), and intermediate types containing both sodium and calcium ions.As a result, the properties of mortars and concrete will differ depending on the …
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DQG,WV Fang et al. 3URSHUWLHV Polyoxyethylene Ether …
The concrete mix can be shown in Table 3: Table 3 concrete mix proportion Kg/m3 Strength grade C S G1 G2 W Amixture C50 497 790 200 804 159 5.96 3. Results and Analysis 3.1. The Effect of Mass ratio of Acid to Ether on the Fluidity of PEFA Cement Paste When the reaction temperature is 20℃ and the concentration of reaction system is 50% (the ...
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Reactivity of Calcined Clays as SCM—A Review
1:1 layer structure e.g., kaolinite (a) and 2:1 layer structure e.g., montmorillonite (b) illustrated with tetrahedra and octahedra (modified after []); 1:1 layer structure of kaolinite (c) and 2:1 layer structure of illite (d) illustrated with atom positions (modified after []).These corners are linked to octahedrons with edges of OH −, which are partly substituted by sharing oxygen bonds.
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Supplementary cementitious materials: New sources, …
Calcined smectite, bentonite, or montmorillonite clays, on the other hand, can be pozzolanically reactive [[31], ... SCMs have been used in concrete mixtures for decades to improve performance such as increased long-term compressive strength, enhanced long-term durability, reduced cost, and reduced environmental impact. ...
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Enhancing structural analysis and electromagnetic shielding in …
Enhancing structural analysis and electromagnetic shielding in carbon foam composites with applications in concrete integrating XGBoost machine learning, carbon nanotubes, and montmorillonite ... By integrating Carbon Nanotubes (CNTs) and Montmorillonite ... It is typically used to fill bridge bearings in soft soil areas, backfill foundation ...
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Controlling natural resources depletion through Montmorillonite
It can be concluded that this Pakistani bentonite can be used to replace up to 30% of cement to produce concrete with sufficient compressive strength for low-cost construction resistant to ...
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(PDF) Biochar-Added Cementitious Materials—A Review on Mechanical
0.5% concrete (3.34 MPa), which was 51% higher than the reference concrete. The flexural strength of the 0.8% and 1% biochar concentrations were 2.72 and 2.65 MPa, respectively .
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Chemical Stabilization | Mt. Carmel Stabilization Group | Mt.
Chemically stabilized soil can also be used in concrete slab-on-grade construction by incorporating the stabilized soil's increased modulus of subgrade reaction (k) into the slab design. Related Projects. Heading. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Lorem ...
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Calcined clay
Some of the common minerals found in varying proportions in clays are montmorillonite, sepiolite, illite, and kaolinite. One type of calcined clay that has been in use for decades is metakaolin. …
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Bentonite | Properties, Formation, Uses » Geology Science
Bentonite is a type of clay that is composed primarily of the mineral montmorillonite. It is a highly absorbent clay that has many uses in various industries, including cosmetics, pharmaceuticals, and construction. ... as well as in the production of cement and concrete. It can improve the strength and durability of these materials.
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Applications of using nano material in concrete: A review
As mentioned in earlier sections, improvement in enhancing performance and durability of concrete can be achieved by using nano materials. In this sub sections, discussion on the nano materials reported by previous researchers and its use in UHPC will be further elaborated. ... Nanoclay is made of montmorillonite mineral deposits known to have ...
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Fernandez, R., Martirena, F. and Scrivener, K.L. (2011) The …
Fernandez, R., Martirena, F. and Scrivener, K.L. (2011) The Origin of the Pozzolanic Activity of Calcined Clay Minerals A Comparison between Kaolinite, Illite and Montmorillonite. Cement and Concrete Research, 41, 113-122.
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Controlling natural resources depletion through Montmorillonite
Karak Montmorillonite (K-M) clay can be used as Supplementary cementitious material for low cost concrete. Initial and final setting time are increased by using K-M clay as cement replacement. Porous structure of the concrete can be improved by incorporating K-M clay.
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Investigating the Effects of Micro Montmorillonite on Cement …
The effects of micro-sized montmorillonite clay (MMT) on Portland cement concrete were examined in this study, focusing on regular and calcined MMT as partial cement replacements. …
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Reactivity of Clay Minerals in Intervention Mortars
Minor amount of zeolite and kaolinite can be observed which transform with temperature. The kaolinite is completely transformed at 800 and 900 °C. 3.2 Pozzolanic Reactivity with Temperature. The specific gravity of lime used for the tests was 2.28, and that of sundried, montmorillonite, and kaolin clays were 2.09, 2.09, and 1.96, respectively.
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(PDF) Effect of montmorillonite as additive on the
Montmorillonite was used at 0%, 5%, 10% and 15% additive by weight of cement while the water/cement ratios of 0.45 and 0.55 are considered for the cement pastes and cement mortars with the sand ...
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ReviewMontmorillonite clays in Portland clinker-reduced, non-clinker cements, and cement composites: A review
Controlling natural resources depletion through Montmorillonite
Karak-Montmorillonite up to 20% can be used in lean concrete, curb stones, plinth protections to reduce Sulphate and acids attack or weathering action of environment. Overall …
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Effects of organo-modified montmorillonite on strengths and
From published research it can be observed commonly used nanoparticles in the concrete matrix are SiO 2 Sobolev et al., 2009;Qing et al., 2006) and TiO 2 (Sobolev and Gutiérrez, 2005;Li et al ...
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Controlling natural resources depletion through Montmorillonite
Concrete samples with Karak-Montmorillonite fraction perform better against acid and sulphate attack. Karak-Montmorillonite up to 20% can be used in lean concrete, curb stones, plinth protections to reduce Sulphate and acids attack or weathering action of environment. • Overall durability of concrete improves with addition of Karak ...
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