TY  - JOUR
T1  - On the Issue of Improving the Quality of Domestically Produced Building Mortars
AU - Onoprienko, Natalya Nikolaevna AU - Rahimbaev, Shark Matrasulovich AU - Degtev, Ilya Alekseevich AU - Baskakov, Pavel Sergeevich 
JO  - Research Journal of Applied Sciences
VL  - 9
IS  - 12
SP  - 1202
EP  - 1205
PY  - 2014
DA  - 2001/08/19
SN  - 1815-932x
DO  - rjasci.2014.1202.1205
UR  - https://makhillpublications.co/view-article.php?doi=rjasci.2014.1202.1205
KW  - Cement-polymer compositions
KW  -modification of constrution mortars
KW  -water-soluble polymers
KW  -water-retaining capacity
KW  -technological characteristics of mortars
AB  - Polymer additives of local and foreign production for application in dry building mixes technology were presented. The necessity of expanding the range of polymer additives produced in Russia for manufacturing ompetitive products was proved. It was shown that the use of local water-soluble polymers masonry mortars with additives (methylcellulose, hydroxyethyl cellulose) in the amount of 0.5-1% prevents softening and cracking of masonry at the junction of bricks, provides high adhesion to stone walling, increases the solidity of masonry. The load bearing strength of masonry cement-sand mortar with the addition of 0.5% methylcellulose increases by 20% compared with the brickwork on the traditional mortar without the addition of polymer. The generation of major cracks in case of central compression of masonry on on the basis of cement-polymer mortar occurs at higher intensities of breaking load. Additives of studied domestically manufactured water-soluble polymers are environmentally friendly products. The low percentage of polymer has positive effect on water resistance and cost of masonry. Designed masonry mortars can be recommended for buildings and structures subjected to dynamic effects.
ER  -