Discussion and research results
Fixing
salted
sand
Kazakhdarya
performed by treating their surface with an
aqueous solution GSK after making sand
crushed and sift through a sieve 0.5mm
additives — sawdust in an amount of 0.26
kg/m 2 with vigorous stirring of the mixture.
For this purpose, solutions of GSK with
concentrations ranging 0.2 to 1.1%. Thus as
well as the first case, distinguishing the
product is a colloidal dispersion degree at the
stage transition sol-gel. The essence of the
The research results of the mineralogical
and chemical composition of salted sand
Kazakhdarya showed that samples of sands
Kazakhdarya are more mineralized. The
predominant of the soluble salts are chlorides
and sodium sulfate. SiO 2 content in the sand
is 89.24% and the CaO, MgO, K
2
O and Na
2
O
is 1.11; 0.95; 1.85 and 1.35%, respectively. By
particle size distribution in the sample contains
predominantly sand particles 0.1–0.05 mm.
The results of research of influence of the
composition of additives-fixers in the
formation
of
water-resistant
aggregates
(WRA), and the mechanical strength of the
surface crust are shown in Table. 1. As seen
from Table. 1, the content of water-stable
aggregates (WRA) in the initial for HSC
concentration of 1.1% as well as their number
64,24–69,91% WRA and 71,19–77,72%,
respectively. HSC communicate with sand
particles and attending in it salts (anions
chlorine, sulfate, etc..) forming aso that the use
of calcium silicate in an amount of 200–600
mg/l in combination with aluminum sulfate
(200–400 mg/l) purification degree reaches
94–98%. From the data of Table 2 also shows
that
the
optimal
ratios
of
reagent
components parts — Calcium silicate (3 parts
of a 0.05% solution of calcium chloride and 2
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