Effect of macro-mesoporous rice husk ash on rheological properties of mortar formulated from self-compacting high performance concrete

Le, Ha Thanh; Kraus, Michael; Siewert, Karsten; Ludwig, Horst‐Michael

doi:10.1016/j.conbuildmat.2015.01.079

Cited by 56 publications

(19 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…-The incorporation of RHA increased the SSD of mortar, slightly decreased filling and passing abilities and significantly increased plastic viscosity and segregation resistance of A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT 25 SCHPC. The incorporation of RHA also eliminated the bleeding of mortar and SCHPC.…”

Section: Discussionmentioning

confidence: 98%

“…The pore size distribution of RHA was determined by BJH method. The detailed information on pore structure can be found in a previous study [25].The pore volume and water demand of RHA determined by Puntke method [26] are shown in …”

Section: Methodsmentioning

confidence: 99%

“…Based on the experimental results in this study and in previous studies [25,38,39], the authors have schematized qualitatively the influence exerted by RHA on the self-compacting properties of SCC/SCHPC, as shown in Table. 5. The effect of other MAs on self-compacting properties of SCC/SCHPC is proposed by the authors and other authors [16].…”

Section: Accepted Manuscriptmentioning

confidence: 96%

See 2 more Smart Citations

Effect of rice husk ash and other mineral admixtures on properties of self-compacting high performance concrete

Ludwig

2016

Materials & Design

Self Cite

134

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 96%

See 1 more Smart Citation

Effect of rice husk ash and other mineral admixtures on properties of self-compacting high performance concrete

Ludwig

2016

Materials & Design

Self Cite

134

View full text Add to dashboard Cite

“…The results clearly shows the hydration of cementitious materials blended with CB filler play the main role in development of mechanical properties of FRSCC. One side the presence of ASCA stimulates the cement hydration (Le 2015). The moisture absorbed by the pore structure of the ASCA is released out of the pore to provide enough moisture for the surrounding.…”

Section: Dynamic Compressive Strengthmentioning

confidence: 99%

Link of Self-Compacting Fiber Concrete Behaviors to Composite Binders and Superplasticizer

Федюк

Mosaberpanah

Lesovik

et al. 2020

ACT

View full text Add to dashboard Cite

Composite binders were prepared as novel compositions, on the basis of which fiber reinforced self-compacting concretes (FRSCC) with high rheological, mechanical, dynamical, and impermeability behaviors are created. Rice husk ash, quartz sand, and limestone crushing waste within CEM I and different ratio of superplasticizer were investigated as components of composite binders. Central Composite Face Centered method was used to design the number of experiments and randomizations and then screened by Response Surface Methodology. The validity of models was projected by ANOVA. Replacement of cement by waste composite binders as a supplementary cementitious material has a positive effect on mechanical properties of FRSCC from 30% to around 35% of cement replacement. Adding the superplasticizer improved the performance of FRSCC in all aspects in the given range. Increasing the waste composite binders decreased the vapor permeability and effective diffusion coefficient of FRSCC by improving the hydration rate and decreasing the pores of the concrete matrix. Designed FRSCC has the potential to be used as a material for protective structures, because it is able to provide comprehensive protection against the dynamic effects and penetration of gases.

show abstract

“…According to IUPAC, pores can be classified according to their size into micropores (smaller than 2 nm), mesopores (from 2 to 50 nm) and macropores (larger than 50 nm) [25][26][27][28]. The pores that have the greatest influence on the macroscopic response of concrete are micropores and mesopores.…”

Section: Introductionmentioning

confidence: 99%

Use of Computed Tomography Scan Technology to Explore the Porosity of Concrete: Scientific Possibilities and Technological Limitations

2021

View full text Add to dashboard Cite

This paper shows the scientific possibilities of computed tomography for the study of concrete porosity. The enormous technological advances in computed tomography equipment used in materials research, with increasingly higher energy, better resolution and smaller pixel size will allow, in the near future, viewing pore sizes that are currently unthinkable, competing in resolution with the traditional techniques of mercury porosimetry and nitrogen adsorption. The challenge at that time (and to a lesser extent today) will be how to extract as much information as possible from the large amount of data provided by computed tomography equipment. In this article, through the study of six cubic specimens of 40 mm sides, different techniques of extraction and presentation of the information are shown, which help us to better understand the characterization of the morphology and distribution of the pores inside the concrete matrix. This information is essential to understand some of the macroscopic responses of the concrete.

show abstract

Effect of macro-mesoporous rice husk ash on rheological properties of mortar formulated from self-compacting high performance concrete

Cited by 56 publications

References 30 publications

Effect of rice husk ash and other mineral admixtures on properties of self-compacting high performance concrete

Effect of rice husk ash and other mineral admixtures on properties of self-compacting high performance concrete

Link of Self-Compacting Fiber Concrete Behaviors to Composite Binders and Superplasticizer

Use of Computed Tomography Scan Technology to Explore the Porosity of Concrete: Scientific Possibilities and Technological Limitations

Contact Info

Product

Resources

About