Effect of redispersible polymer powder on setting time of thin-bed mortars
The aim of work is to describe and to complement the existing knowledge on the effect of redispersible polymer powder on the setting time of cement mortar as measured by means of ultrasonic apparatus. The mortars were simple mixtures of filler in the form of quartz sand, Portland cement CEM I 42.5 R...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
|
| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201816304005 |
| _version_ | 1831537166775222272 |
|---|---|
| author | Kulesza Marcin Dębski Dawid Fangrat Jadwiga |
| author_facet | Kulesza Marcin Dębski Dawid Fangrat Jadwiga |
| author_sort | Kulesza Marcin |
| collection | DOAJ |
| description | The aim of work is to describe and to complement the existing knowledge on the effect of redispersible polymer powder on the setting time of cement mortar as measured by means of ultrasonic apparatus. The mortars were simple mixtures of filler in the form of quartz sand, Portland cement CEM I 42.5 R as binder and methyl hydroxyethyl cellulose. The mortar additives were two commercially available redispersible polymer powders in an amount of 0-5% of total weight. The chosen polymers had different chemical structure: styrene-acrylic copolymer (SA), vinyl acetate-ethylene copolymer (ET), and minimum film forming temperature (MFFT). The amount of water was constant and equal to 20% of the total weight of the mortar. Conclusions: - even the small amount of redispersible polymer powder added to the cement mortar has a significant influence on mortar’s initial and final setting time and this effect strongly depends on the percentage of the additive, - the chemical structure of the studied redispersible polymer powders did not influence the behaviour of the whole chemical system, - the further studies on technical properties, such as mechanical strength and permeability are planned in order to find more information on the structure of hardened mortar. |
| first_indexed | 2024-12-16T23:02:05Z |
| format | Article |
| id | doaj.art-66a76a41e7ee42bca50bbc20f1ac42c8 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-16T23:02:05Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-66a76a41e7ee42bca50bbc20f1ac42c82022-12-21T22:12:41ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011630400510.1051/matecconf/201816304005matecconf_matbud2018_04005Effect of redispersible polymer powder on setting time of thin-bed mortarsKulesza MarcinDębski DawidFangrat JadwigaThe aim of work is to describe and to complement the existing knowledge on the effect of redispersible polymer powder on the setting time of cement mortar as measured by means of ultrasonic apparatus. The mortars were simple mixtures of filler in the form of quartz sand, Portland cement CEM I 42.5 R as binder and methyl hydroxyethyl cellulose. The mortar additives were two commercially available redispersible polymer powders in an amount of 0-5% of total weight. The chosen polymers had different chemical structure: styrene-acrylic copolymer (SA), vinyl acetate-ethylene copolymer (ET), and minimum film forming temperature (MFFT). The amount of water was constant and equal to 20% of the total weight of the mortar. Conclusions: - even the small amount of redispersible polymer powder added to the cement mortar has a significant influence on mortar’s initial and final setting time and this effect strongly depends on the percentage of the additive, - the chemical structure of the studied redispersible polymer powders did not influence the behaviour of the whole chemical system, - the further studies on technical properties, such as mechanical strength and permeability are planned in order to find more information on the structure of hardened mortar.https://doi.org/10.1051/matecconf/201816304005 |
| spellingShingle | Kulesza Marcin Dębski Dawid Fangrat Jadwiga Effect of redispersible polymer powder on setting time of thin-bed mortars MATEC Web of Conferences |
| title | Effect of redispersible polymer powder on setting time of thin-bed mortars |
| title_full | Effect of redispersible polymer powder on setting time of thin-bed mortars |
| title_fullStr | Effect of redispersible polymer powder on setting time of thin-bed mortars |
| title_full_unstemmed | Effect of redispersible polymer powder on setting time of thin-bed mortars |
| title_short | Effect of redispersible polymer powder on setting time of thin-bed mortars |
| title_sort | effect of redispersible polymer powder on setting time of thin bed mortars |
| url | https://doi.org/10.1051/matecconf/201816304005 |
| work_keys_str_mv | AT kuleszamarcin effectofredispersiblepolymerpowderonsettingtimeofthinbedmortars AT debskidawid effectofredispersiblepolymerpowderonsettingtimeofthinbedmortars AT fangratjadwiga effectofredispersiblepolymerpowderonsettingtimeofthinbedmortars |