Saudi Journal of Civil Engineering (SJCE)
Volume-1 | Issue-01 | 37-44
Original Research Article
Physical Characteristics of Grout for Low Density Roads
Poonam Mahajan, Shrikant M. Harle
Published : Nov. 10, 2017
Abstract
The presented study represents the results of an experimental study
handled with developed grouting materials. These experimental studies cover the
effects of some mineral Admixtures and chemical admixtures on the characteristics of
grout such as compressive strength, bleeding, setting time and viscosity for different
curing times. All grout types were prepared under same water/cement ratio. Grout
mixtures that 15% of mineral admixtures replaced with cement by weight were
prepared. The results showed that grouts produced with silica fume (SF) and
metakaolin (MK) in all mixtures were yielded the highest compressive strength at all
ages. The all strength tests of fly ash (FA) grout exhibited low values till 28 days of
curing time in accordance with reference grout, but a sharp increase was observed
after this period. Grouts with perlite (PRL) and blast furnace slag (BFS) showed the
similar strength values according to reference grout. Mineral admixtures can be used
for high-strength and low cost grout in tunneling applications. In addition, the use of
waste materials can contribute to the resolution of environmental problems.
Compressive strength obtained by the grout prepared by using styrene butadiene
rubber was found 23.644 N/mm2 and 34.793 N/mm2 for 7 and 14 of curing period
where compressive strength obtained by the grout prepared by using fly ash was
found 20.444 N/mm2 and 31.827 N/mm2 for 7 and 14 days of curing period.