| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 256995 | Construction and Building Materials | 2015 | 8 Pages |
•Zeolitic rock improves the characteristics of lightweight aggregates.•Introduction of 20% zeolitic rock reduces the temperature required by 50 °C.•Lightweight aggregates with the addition of zeolitic rocks have a total porosity of 60–70%.
This paper reports the results of investigations on manufacturing lightweight aggregates from sand sludge with zeolitic rocks added to decrease the foaming temperature. Sand sludge is a waste product from crushing and screening plants for sand and gravel production. Introduction of 20% zeolitic rock into the raw mix composition reduces the temperature required to produce lightweight aggregates by 50 °C and improves their physical–mechanical characteristics. Lightweight aggregates using sand sludge with zeolitic rocks added have porous structures, with a total porosity of 60–70%; this material is recommended for use as lightweight aggregates for concrete and as heat-insulating filling.
