basaltfibers properties in general
Basaltfiber properties in general
- low thermal conductivity (0.031-0.032)
- outstanding fire resistance (Classe A1, fusione a 1160°C)
- excellent breathability (µ < 1.5)
- high specific heat (above 2)
- remarkable mechanical resistance
This high-performance product confirms to be very suitable for low-thickness internal coats, for the solution of thermal bridges and for inserts in thermo-acoustic and fireproof sandwich systems.
Table of chopped fiber
|Material (type of binding substance)||Quantity of chopped fiber, kg||Introduction result||Commercial aspect||Technological process|
|Gypsum||0,5-0,7 %||Increase of the bending resistance up to 32% without decrease of the concrete mark||The decline of products cost price at the cost of a partial or complete waiving reinforcement.||During the gypsum goods production process the method of a fractional addition of chopped fiber in the finish mixture is not applicable because of increase of mixing time and , the term reduction of gypsum dough setting.
The method of a fractional addition of chopped fiber in the dry mixture is preferable.
|sand-cement mortar||0,3-0,6 kg (0,1-0,2 %)||Increase of the compression resistance up to 70%, the bending resistance up to 35%||The decline of products cost price at the cost of a partial or complete waiving reinforcement. The interval increase between overhauls, the increase of the products wear- ability. The decrease of cement consumption is possible, as well as a productivity gain at the cost of cutting time for the hold of a product in a form.||Different methods of the chopped fiber addition in a finish mixture are applicable.
The method of a fractional addition of chopped fiber in the dry and finish mixture is preferable.
The chopped fiber is addicted after aggregates feeding.
The cement is added 30-45 min later chopped fiber addition.
Time of mixing should be limited, it should not exceed 6-10 min (depends on plasticity of mixture)
|heavy aggregate concrete||0,3 kg (4,0 %)||Increase of the bending resistance up to 20% without decrease of the compression resistance, the term reduction of cement setting||The cost price reduction of products at the cost of demand curtailment and partial waiving reinforcement.|
|foam concrete||0,3-0,6 kg (0,1-0,2 %)||Increase of the compression resistance up to 80%, the bending resistance up to 25%||The decrease of cement consumption, the reduction of density with intended strength|
tabel of rovin
needle punching material