What is ARG

What is ARG?

NEG ARG Fibre is a high-quality alkali-resistant glass fiber which is designed to reinforce cementitious and other alkaline matrices. NEG ARG Fibre has non-combustibility characteristics, corrosion resistance, and also has high tensile strength like piano wire.

Properties of NEG ARG Fibre

NEG ARG Fibre properties are highly stable because of its unique glass composition and manufacturing process using our own direct melt furnace.

Tables below show general properties and chemical resistivities of NEG ARG Fibre.

Property

Unit

Thermal expansion coefficient
Softening point
Density

X10^-7/^oC
^oC
g/cm³

90
830
2.7

Tensile strength
Young's Modulus
Strain to failure

GN/m²
GN/m²
%

1.4
74
2

Alkali resistivities

Weight loss
(Saturated cement solution,
80^oC X 200HR)

NEG ARG Fibre	:	0.8
E Glass Fiber	:	10.5

Tensile strength retention^*

NEG ARG Fibre	:	75
E Glass Fiber	:	14

Acid resistivities

Weight loss
(10% HCl, 80^oC X 90HR)

NEG ARG Fibre	:	1.6
E Glass Fiber	:	42.9

Weight loss
(10% H2SO4, 80^oC X 90HR)

NEG ARG Fibre	:	1.2
E Glass Fiber	:	42.0

^*Tensile strength retention rate (%) of cement paste applied strand, held at 50^oC for 300 hours in 100% RH
NOTE: These values are only for reference

Alkali resistivity of NEG ARG Fibre

The alkali resistance of glass fiber is determined mainly by the zirconia (ZrO2) content in the glass. The higher the ZrO2 content, the greater the alkali resistance.
As NEG ARG Fibre contains ZrO2 higher than any other marketed glass fiber, NEG ARG Fibre shows better alkali resistivity than them.
The Figures below show comparison of alkali erosive attack in NEG ARG Fibre and E Glass Fiber.

Comparison of alkali erosive attack in NEG ARG Fibre
and E Glass Fiber (SEM-photographs)

NEG ARG Fibre

As manufactured		Held at 80^oC for 200 hours in saturated cement solution

E Glass Fiber

As manufactured

Held at 80^oC for 200 hours in saturated cement solution

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