Properties of nano-silica modified pervious concrete

Mohammed, Bashar S.; Liew, Mohd Shahir; Alaloul, Wesam Salah; Khed, Veerendrakumar C.; Hoong, Cheah Yit; Adamu, Musa

doi:10.1016/j.cscm.2018.03.009

Cited by 50 publications

(29 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, nano-SiO 2 powder is more effective to improve the mechanical properties of concrete. The pore volume of cement slurry prepared by replacing part of cement with nano-SiO 2 can be reduced by 13.4%, and it does not adversely affect for the porosity and permeability of cement slurry [14]. Chen et al [15] investigated the axial compressive properties of nano-SiO 2 -reinforced concrete filled round stainless steel short columns.…”

Section: Introductionmentioning

confidence: 99%

The effect of nano-SiO2 on concrete properties: a review

Zhuang

Chen

2019

Nanotechnology Reviews

132

View full text Add to dashboard Cite

In recent years, the addition of nanometer materials to concrete materials has attracted a group of increasing number of scholars’ research interests, and nano-SiO2 is one of the research hotspots. In this paper, we briefly introduce the influence of nano-SiO2 on setting time, slump, shrinkage, durability and mechanical properties of concrete. In addition, this review also includes the microstructure measured by scanning electron microscope (SEM) and the content of various hydration products obtained by X-ray diffraction (XRD). The result shows that the setting time of nano-SiO2 concrete is shortened, the slump is reduced and the shrinkage is improved owing to the high activity and nucleation of nano-SiO2. The improvement effect of nano-SiO2 on concrete is remarkable, especially in the aspect of enhancing the durability of concrete. It should be noted that nano-SiO2 shows limited improvement in the mechanical properties of concrete. In the end, this literature summary explains the macro performance of nano-silica modified concrete through microstructure.

show abstract

Section: Introductionmentioning

confidence: 99%

The effect of nano-SiO2 on concrete properties: a review

Zhuang

Chen

2019

Nanotechnology Reviews

132

View full text Add to dashboard Cite

show abstract

“…Thus, higher compressive strength values can be achieved [35]. Some studies determine this additive improves cement paste quality, increasing its durability [29,31].…”

Section: Microsilica and Nanosilicamentioning

confidence: 99%

Selection of Additives and Fibers for Improving the Mechanical and Safety Properties of Porous Concrete Pavements through Multi-Criteria Decision-Making Analysis

et al. 2020

View full text Add to dashboard Cite

Despite the number of environmental advantages that porous concrete (PC) pavements can provide, they are mainly used in light-traffic roads, parking lots and sidewalks due to their low mechanical strength. This research focuses on the common additives employed in PC pavements, according to a literature review, with the aim of increasing their mechanical strength while maintaining an acceptable infiltration capacity. The results demonstrated that the combination of superplasticizers and air-entraining additives can provide indirect tensile strength values over 2.50 MPa, with an infiltration capacity over 0.40 cm/s. In addition, polypropylene fibers were seen to provide very good safety properties, preserving some structural integrity in the case of failure. All mixtures studied obtained outstanding skid resistance results under both dry and wet conditions.

show abstract

“…Therefore, instead of having pervious street pavement which is more challenging, costly and large scale, a new sustainable technology known as pervious curb is to be introduced in this research as another alternative solution. Basically, pervious curb is mainly to be made of pervious concrete or also well-known as high permeable concrete or porous concrete [16,27]. The materials used in this concrete are similar to those in the impervious concrete, except it contains little or no fine aggregates which creates high voids and hence enabling water to infiltrate through it [10,31].…”

Section: Fig 1 Water Pondingmentioning

confidence: 99%

“…2. Its high porosity is achieved through the main ingredients used in the mixture which consists of cementing materials, coarse aggregate, water and admixtures [16]. The materials is the same as used the impermeable concrete but without fine aggregate [5].…”

Section: Pervious Concretementioning

confidence: 99%

See 1 more Smart Citation

Infiltration Rate of Pervious Concrete on Street Curb Application

2019

ijrte

View full text Add to dashboard Cite

The street curb and stormwater inlets are among the component often found on the road which serve as part of the urban stormwater drainage system. They act as a stormwater removal and discharge it into the underground drainage system. However, the current stormwater inlet practiced in Malaysia has limitations which often cause water ponding and consequently lead to road flooding. Rather than improving the performance of stormwater inlet, the flow interception and rate of stormwater removal may be enhanced by introducing a new technology called the pervious curb. It isto be made of pervious concrete which provide an ability to allow water to pass through it.This paper attempts to adapt the existingtwo pervious concrete mix design and applied it into the so-called pervious curb. Herein, a newly designed infiltration rate test was used to test the pervious concrete performance under the effect of infiltration through side surface of the concrete curb. While doing so, the infiltration rate of the pervious concrete will be investigated under varying slopes. Results showed that the infiltration rate is quite high and the rate of infiltration increases as the inclination gutter increases. Thus, it is proven that the new infiltration rate test is applicable and can be used for other similar applications. Furthermore, the test has significantly revealed that the pervious concrete has high potential in enhancing flow interception and able to reduce water ponding as a street curb.

show abstract

Properties of nano-silica modified pervious concrete

Cited by 50 publications

References 27 publications

The effect of nano-SiO2 on concrete properties: a review

The effect of nano-SiO2 on concrete properties: a review

Selection of Additives and Fibers for Improving the Mechanical and Safety Properties of Porous Concrete Pavements through Multi-Criteria Decision-Making Analysis

Infiltration Rate of Pervious Concrete on Street Curb Application

Contact Info

Product

Resources

About