Performance of Portland cement mixes containing silica fume and mixed with lime-water

Elaty, Metwally Abd Allah Abd; Ghazy, Mariam Farouk

doi:10.1016/j.hbrcj.2013.12.004

Cited by 17 publications

(9 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, Figure 4b also shows that changing the SF content has no significant effect on both the initial and final set times, although increasing the SF content slightly decreases the setting time. This result matches with previous findings [34]. Generally speaking, if the optimum amount of SF is used, the addition of SF reduces the setting time, because the pozzolanic reaction of SF is very active at the early hours of hydration [35].…”

Section: Penetration Resistance and Setting Timesupporting

confidence: 91%

See 1 more Smart Citation

Proportioning and Characterization of Reactive Powder Concrete for an Energy Storage Pile Application

et al. 2018

View full text Add to dashboard Cite

Reactive Powder Concrete (RPC) is a newly emerging concrete material that is being used for various applications where high-strength concrete is required. RPC is obtained by removing coarse aggregates and adding fine powders such as silica fume into the concrete mixture. This research has focused on the proportioning and characterization of RPC mixture to be used as a material for energy storage pile application. For mixture parameters, the water-to-binder ratio (WB), silica fume (SF) content, and normal and warm temperature curing have been selected. The relative flowability, penetration resistance, setting time, drying shrinkage, and compressive and flexural strengths were evaluated. Based on the test results, the mixture with WB = 0.22 and SF = 20% was the best mixture with the highest tensile strength and other characteristics. Response surface methodology (RSM) was used to design the experiments and find the optimum mixture proportions to achieve the highest compressive strength. The optimum WB and SF content to achieve the highest strength for combined ages (7 days, 28 days, and 56 days) was determined to be WB = 0.213 and SF = 20%. Through the comparison between the test results and the required strength from analytical simulations, the RPC studied in this paper was deemed to be suitable for the energy storage pile.

show abstract

Section: Penetration Resistance and Setting Timesupporting

confidence: 91%

“…If the RPC needs to achieve the same flowability, it requires an increase in water demand. This water increment is not much different when the SF content is beyond 15% [34,36]. Figure 6.…”

Section: Penetration Resistance and Setting Timementioning

confidence: 91%

Proportioning and Characterization of Reactive Powder Concrete for an Energy Storage Pile Application

et al. 2018

View full text Add to dashboard Cite

show abstract

“…It was reported that increases in strength and durability performance of blended cement was noted [4]. Similar studies were carried out in earlier research for quantifying the performance of blended cement in different conditions [5,6,7,8].…”

Section: Generalsupporting

confidence: 60%

Strength characteristics of Quaternary Mix Concrete

Bhuvaneshwari¹,

Pavaleesh²

2019

IJITEE

View full text Add to dashboard Cite

By handling the cement, bagasse ash, silica fume and metakaolin as partial replacement of cement of cement a quaternary mix concrete could be achieved. Various percentages of replaced materials were considered for analysis. These three different materials consist of high amount of alumina ion and silica percentage. Use of these materials enhances the microstructure of concrete and helps to attain less permeable concrete. Physical and chemical properties of materials analyzed, and partially replaced with cement in different proportions such as HSC [5B, 10B, 15B, 20B] and HSC [5S, 10S, 15S, 20S] and HSC [5M, 10M]. The cubes of [100mm x 100mm x 100 mm] size were cast and tested. After confirming the characteristic compressive strength from cubes, optimum values (HSC 10B, HSC 15S and HSC 5M) has been taken. These values have been mixed up into three propositions (QBSM1, QBSM2 and QBSM3). Compressive strength results show that optimum percentage was found to be QBSM2 (10% SCBA+ 10% SF + 5% MK).

show abstract

“…The significant change in the XRD patterns of the studied mixes cured for 2 and 4 weeks was found for the quartz peaks that have less intensity in the 4 weeks giving evidence to the pozzolanic reaction progressing as quartz dissolution. This may be attributed to the low crystallinity of the formed cementing phases especially in the early stages of formation [27]. Fig.…”

Section: Mineralogy Of the Cured Specimens Of Different Mixesmentioning

confidence: 99%

The Feasibility of Using Marble Cutting Waste in a Sustainable Building Clay Industry

El-Mahllawy¹,

Kandeel²,

Latif³

et al. 2018

Preprint

View full text Add to dashboard Cite

This study evaluates the feasibility of stabilizing clay bricks with marble cutting waste (MCW). This waste currently discarded in huge quantities as a sludge resulted from sawing the marble blocks to slabs, grinding and polishing of marble processes to the landfills located around the marble processing factories located in the Shaq El-Thoban industrial zone, Cairo governorate, Egypt causing negative impacts on the environment, health and sustainable development. Experimental investigations were carried out to explore the effect of addition of the MCW in different clay-base mixes at different percentages up to 25% at the expense of the hydrated lime. Cement, hydrated lime and MCW are the three types of solidification agents used, clay and sand were also added in the formulations of the unfired clay brick specimens. Laboratory cylindrical stabilized and compressed specimens were made, and then they were cured in a humidity chamber for 2 and 4 weeks, then after were air dried, tested and evaluated according to the Egyptian code for the building by the stabilized and compressed earth soil (ECBS, 2016). To enhance the durability of the cured specimens, transparent silicon – based paint was used for this purpose. The laboratory results demonstrate high potential usage of MCW based additives up to 15% incorporating HL. In addition, the used paint could be an effective treatment way for the use of stabilized bricks in a wet environment. The use of eco-friendly building materials will be a great contribution for the environmental advantages and suggest a remarkable economical alternative to the fired building units.

show abstract

Performance of Portland cement mixes containing silica fume and mixed with lime-water

Cited by 17 publications

References 14 publications

Proportioning and Characterization of Reactive Powder Concrete for an Energy Storage Pile Application

Proportioning and Characterization of Reactive Powder Concrete for an Energy Storage Pile Application

Strength characteristics of Quaternary Mix Concrete

The Feasibility of Using Marble Cutting Waste in a Sustainable Building Clay Industry

Contact Info

Product

Resources

About