Mechanical Strength, Durability And Drying Shrinkage Of Structural Mortar Containing Hcwa As Partial Replacement Of Cement
||Potential use of high calcium wood ash (HCWA) as partial cement replacement material in production of mortar was investigated. Chemical composition and phases of HCWA were evaluated using X-ray Fluorescence (XRF) and X-ray Diffraction (XRD) analytical methods respectively. Physical properties of HCWA namely particle size distribution, average particle size d50 and specific surface area were assessed by laser particle size analyser. In addition, mechanical strength, durability and shrinkage properties of structural grade mortar mixtures produced by partial replacement of cement using HCWA were investigated. A total of six mortar mixtures including control mortar (containing only neat cement as binder) and HCWA mixtures with varying level of cement replacement using HCWA were produced. For the HCWA mortar, HCWA was used at partial cement replacement level of 5%, 10%, 15%, 20% and 25% by total binder weight. Water to binder ratio was held constant at 0.35 for all mortar mixtures. Results indicated that the use of HCWA as partial cement replacement did not have significant adverse effect on workability of fresh mortar. Mortar mix with 15% HCWA exhibited highest compressive strength at the age of 90 days. Enhanced flexure strength was observed for mortar mixture with HCWA content of 5% and 10% at the same age. Incorporation of HCWA at level of cement replacement ranging between 5% and 15% was observed to have beneficial effect on durability properties of mortar namely air permeability and carbonation resistance. Reduction in shrinkage of mortar was observed for mortar mixtures containing up to 10% HCWA.
||Construction and Building Materials
||Volume 30, May 2012, Pages 320-329
-  Baoguo Ma, Xin’Gang Wang, Xiangguo Li;Lei Yang Influence Of Superplasticizers On Strength And Shrinkage Cracking Of Cement Mortar Under Drying Conditions
-  Strength And Durability Of Recycled Aggregate Concrete Containing Milled Glass As Partial Replacement For Cement
-  Influence Of Fly Ash Fineness On Strength, Drying Shrinkage And Sulfate Resistance Of Blended Cement Mortar
-  Modelling Drying Shrinkage Of Cement Paste And Mortar: Part I. Structural Models From Nanometres To Millimetres.
-  Mahdavi, Faranak Drying Shrinkage Of Cement Pastes And High Strength Concretes.
-  Free, Restrained And Drying Shrinkage Of Cement Mortar Composites Reinforced With Vegetable Fibres
-  Chee Ban Cheah, A, , And Mahyuddin Ramlia The Implementation Of Wood Waste Ash As A Partial Cement Replacement Material In The Production Of Structural Grade Concrete And Mortar: An Overview
-  Strength And Durability Of Concretes Containing 50% Portland Cement Replacement By Fly Ash And Other Materials.
-  Vu D.D.; Stroeven P.; Bui V.B. Strength And Durability Aspects Of Calcined Kaolin-Blended Portland Cement Mortar And Concrete
-  Ghrici, M.; Kenai, S.; Meziane, E. Mechanical And Durability Properties Of Cement Mortar With Algerian Natural Pozzolana