Effect of Limestone Filler BET(H2O)-Area on the Fresh and Hardened Properties of Self-Compacting Concrete This paper presents a study on the use of limestone fillers with different specific surface area and their effect on the fresh and hardened properties of self-compacting concrete (SCC).
shape of limestone fillers particles: laser diffraction scattering wet sieving and image analysis for particle size measurement and BET adsorption and Blaine permeability methods for specific surface area. Keywords: Limestone fillers particle size distribution specific surface area image analysis BET adsorption Blaine.
x Limestone powder: Locally available fine limestone powder is also used as partial cement replacement material. x Water: Potable tap water was used for the preparation of specimens and for the curing of specimens.
Request PDF on ResearchGate | Effect of limestone filler BET(H2O)-area on the fresh and hardened properties of self-compacting concrete | This paper presents a study on the use of limestone fillers with different specific surface area and their effect on the fresh and hardened properties of self-compacting concrete (SCC).
filler-bitumen systems and bituminous paving mixtures. He investigated four types of fillers (Portland cement limestone dust and powder of crushed gravel). He stated that the range of the filler-asphalt (F/A) ratio required to provide the desired properties of paving mixtures is influenced by the type of filler used.
The primary effect of using limestone as a filler in cement-based materials is that it reduces the porosity of the cement by physical effect. Additionally it can also act as a reactive participant in the hydration process and/or accelerate the binder reaction owing to the nucleation effect.
Research highlights The water requirement of limestone fillers is mainly affected by their swelling clay content and may be directly correlated to MBA and SS BET values. Some limited effects on 7-day compressive strength are observed. No clear specific effect of clayey material content on filler activity index is noticed. No determined
This paper presents a study on the use of limestone fillers with different specific surface area and their effect on the fresh and hardened properties of self-compacting concrete (SCC). The surface area was determined by a simplified BET …
quality of the limestone filler affect the performance of the cement in concrete and the water demand of the cement . Limestone filler affects the crystallization nucleus for the precipitation of CH. These effects produce an acceleration of the …
Limestone filler did not reduce significantly ASR effects despite promoting decrease of portlandite and alteration in the level of particles packaging. Generally it can be considered that the series with limestone filler and the reference series are equivalent.
BET specific surface tests determination of hydrophobicity). After the tests of fillers asphalt mastics were prepared and rheological examinations were obtained. These examinations served to observe the interaction and the effect of fillers. The stiffening effect of fillers and the causes of rutting were also investigated.
The effect of the specific surface area of gravel and limestone filler on the rheology of SCC was evaluated. Performed experiments clearly demonstrated that traditional methods for geometric characterization of the fines (size distribution water absorption fineness modulus etc.) are not sufficient to ensure consistent quality of SCC.
Limestone fillers are notably used as cement replacement materials (cement additions) [1 2]. As the behaviour of fresh and hardened concrete depends on the intrinsic properties of fines notably the so-called “filler effect” [3 4 5] the use of these by-products requires a thorough characterization .