The effect of addition nanoparticles on shrinkage property of ordinary portland cement

الملخص EN

Two types of nanomaterial: Tio2 nanoparticles (NPs) and carbon black NPs have used in this research to study their effect on compressive strength, shrinkage and flow table tests Cement mortar.

The mixing ratio was 1: 2.7: 0.485 (cement, sand, water/cement ratio) for compressive strength test and 1: 2 (cement, sand) with the water/cement ratio was a variable value for dry shrinkage test.

The two nanoparticles' ratios are (0.25% , 0.75% , 1.25 % and 1.75% ) by weight of the Portland cement.

The test results show that the highest value of compressive strength was obtained when using Tio2 at 1.25% wt.

of cement.

But when using carbon black nanoparticles, the greatest value was obtained when adding it with a ratio of 1.75 % wt.

of cement.

Using two NPs when added to cement mortar has a negative effect on the shrinkage value.