Enhancing high-performance concrete sustainability: …
High-performance concrete (HPC) is an advanced formulation that utilizes optimized gradation, reduced porosity, and mineral admixtures to achieve higher strength. The effects of waste tire rubber ...
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Concrete Admixtures
The first step in optimizing concrete is to recognize that concrete is no longer simply cementitious materials, aggregates and water. It is a high performance material with not just four, but seven essentials – consisting of water, cementitious material, sand, gravel, chemical admixtures, additives and fiber reinforcement.
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High-performance concretes with modifying micro additives …
113, Leningradskaya st., Novosibirsk, 630008, Russi a. [email protected]. Abstract. This paper presents the results of the complex modifying additive's effect consisting. of a dispersed inert ...
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Performance Analysis of High-Performance Concrete …
dosage of additives, and mineral admixtures of C50 high-performance concrete will be used to analyze the changes in the mechanics and durability of high …
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Effect of mineral additives and permeability reducing
The combined use of mineral additive and PRA had a more positive effect on the properties of the mixes. In this paper, the effect of usage of the permeability reducing admixture (PRA) having different action mechanisms on hardened state properties of cementit ... Jones T R. High performance concrete incorporating metakaolin—A …
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High-Performance Concrete
The properties of high-performance concrete incorporating calcined clay and limestone powder was studied by Du and Pang (2020).The initial water sorptivity of all concrete mixes reduced with the increase in curing ages up to 180 days owing to the continuous hydration reactions taking place in the concrete matrix (Fig. 13.17).The 28-day value of sorptivity …
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Different mineral admixtures in concrete: a …
From the above literatur e Reviews, we have studied the. different admixtures used in concrete are as a follows: (1) Silica fume (2) Metakaolin (3) POFA (4) RHA (5) GGBS. (6) Fly Ash. • Every ...
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additive materials in cement concrete Topic
STANDARDS, PRACTICES and MANUALS ON ADDITIVE MATERIALS IN CEMENT CONCRETE. ACI PRC-130-19: Report on the Role of Materials in Sustainable Concrete Construction. ACI PRC-440-07 Report on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures. ACI PRC-229R-13 (22) Report on Controlled …
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Physical and pozzolanic action of mineral additions on
RHA concrete is similar to fly ash or slag concrete, both of which are well acceptable for high performance. RHA increased early hydration rate of C 3 S due to its high specific area [18] and ...
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Effect of mineral additives and two-stage mixing on the performance …
There is an increasing tendency to use recycled aggregate to produce concrete due to diminishing sources of natural aggregate. The properties of recycled aggregate concrete (RAC) are inferior to that of normal aggregate concrete. Several strategies including the use of supplementary cementitious materials (SCMs) are …
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Rheological behavior of high performance concrete with mineral
The effect of these admixtures on rheological behavior of high performance concrete have been investigated and presented in this paper. It has been observed that yield stress decreases as the replacement level of rice husk ash and fly ash increases. ... equal masses of respective mineral additives were mixed thoroughly …
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Rheological behavior of high performance concrete with mineral
Request PDF | Rheological behavior of high performance concrete with mineral admixtures and their blending | Rice husk is a waste product that causes pollution and disposal problem. India is the ...
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Innovative Admixtures for High-Performance Concrete
Jim Turici: 412-302-2493. Admixture Equipment Questions: West – Josh Villalba: 909-915-5342. Texas & Mid South – Bruce Garrison: 404-353-4408. Florida – Ruben Aguilar: 954-598-4019. Improve the durability of your concrete with Cemex USA's high-performance admixtures. Request a quote for concrete admixtures now.
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A review on strength development of high performance concrete
Metakaolin: MK is observed as one of the most quality enhancing SCMs in both high strength and high performance concretes [26] and can improve the strength of concrete [27] owing to its ability to transform portlandite into C-S-H gel by means of pozzolanic reaction [28].It was found that 5 wt% replacement of OPC by MK led to 6.56% …
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Mineral Admixtures used in Concrete and Their Importance
In general, all mineral admixtures reduce bleeding of concrete. Admixtures with finer particle size and higher specific surface area are suitable for preparing high density and low permeability concrete. Increase in water demand due to addition of admixtures may be handled by the use of an effective superplasticizer.
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Influence of initial steam curing and different types of mineral
In this study, the mechanical property and microstructure development of UHPC (ultra-high performance concrete) incorporating different PS (phosphorous slag) content is studied under five curing regimes. The microstructure of UHPC is also discussed by TG, XRD, MIP, the SEM-EDS and 29 Si NMR. The result indicated that the high …
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HIGH-PERFORMANCE CONCRETE BASED MINERAL …
The Subject – high-performance-concrete, modified additive wollastonite and MTK. The Object of the study – experimental-statistical dependencies of the influence wollastonite …
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(PDF) An Experimental Study of the Concrete Using …
Environmental friendly and high performance concrete is very import for the applications in sewage and water treatment industry. Using mineral additives such as fly ash and silica fume has been ...
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Effect of High Temperature in Concrete for Different …
Today, high performance and high strength concrete has been started to be produced with the use of chemical and mineral additives in modern constructions, industry constructions, tunnels or structures built for the purpose of private services. The behavior of concrete under the effect of high temperature should be known well (Zhai et al., 2014;
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Performance Analysis of High-Performance Concrete …
This paper develops the mechanical and durable samples of C50 high-performance concrete, studies the mechanical properties, crack resistance, sulfate …
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Tensile and compressive creep deformations of hardening concrete …
The matrix of investigated concretes are: The reference concrete (REF), three types of concretes containing 28.5, 37.5 and 50 % BFS, three types of concretes containing 28.5, 37.5 and 50 % FA (the BFS and FA contents are given as percentage of the sum of cement and mineral additive), SV 40 concrete (a typical concrete mix for …
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Study on the Modification Effect and Mechanism of a Compound Mineral
Both FA and SF have volcanic ash activity and can be used as concrete additives, turning waste into treasure, reducing the amount of cement needed and improving concrete performance [4,5]. In contrast, BF is made of natural basalt after high temperature melting and pulled by platinum rhodium alloy.
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Estimation of compressive strength of self compacting concrete …
@article{Uysal2012EstimationOC, title={Estimation of compressive strength of self compacting concrete containing polypropylene fiber and mineral additives exposed to high temperature using artificial neural network}, author={Mucteba Uysal and Harun Tanyildizi}, journal={Construction and Building Materials}, year={2012}, volume={27}, …
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Different mineral admixtures in concrete: a review
The present work reviews the various mineral admixtures used in concrete which modifies the concrete properties. In this study, cement is partially or completely replaced by different mineral admixtures such as fly ash, silica fume, rice husk ash, …
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Performance evaluation of steam cured HPC pipe piles …
1. Introduction. Pre-stressed high performance concrete (HPC) pipe pile is widely used in various engineering projects such as building, highway and railway, port and wharf constructions, because of its advantages in mechanical properties, density, bearing capacity and convenience of construction [1], [2].Due to its increasing demand, the …
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Enhancing high-performance concrete sustainability: …
High-performance concrete (HPC) is an advanced formulation that utilizes optimized gradation, reduced porosity, and mineral admixtures to achieve higher …
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Efflorescence inhibition and microstructure evolution of …
Mineral additives are widely used in cement stone to improve mechanical properties and durability in the past. Three kinds of mineral additives are used to inhibit the efflorescence of cement stone in this work. ... The relationships between stress and strain for high-performance concrete with metakaolin. Cem. Concr. Res., 31 (2001), pp. 1607 ...
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Predicting the core compressive strength of self-compacting concrete …
SCC mixtures were produced as control concrete (without mineral additives), moreover fly ash and limestone powder were used with two different replacement ratios (15% and 30%) of cement and marble powder was used with 15% replacement ratio of cement. ... Okamura H. High-performance concrete based on the …
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What is High Performance Concrete
Components/Ingredients used in High Performance Concrete. ... Anhydrous gypsum based mineral additives; Chemical Admixtures : Chemical admixtures improves the workability of the concrete mix by increasing the efficiency of the cement paste, which results in decreased water requirement. Some of the important chemical …
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Experimental study on mechanical properties of …
With the help of "incorporating mineral additives" like fly ash and silica fume into the concrete mixes, a series of fundamental tests were conducted and …
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