Sentence examples for close to the reference mortar from inspiring English sources
The results showed that the use of PBW enabled to reduce by 18 23 % the compressive strength of mortars containing 10 and 20%% of waste respectively, which remains always close to the reference mortar (made without waste).
It is also noted that the mass loss is less important for mortars with additions to the reference mortar; which confirms the good behavior of these mortars in sulfuric attacks (Zivika and Bajz 2002; Ghrici et al. 2007).
Table 6 shows the gain or loss in compressive strength compared to the reference mortar for 60 days of immersion in solution of Na2SO4.
The reduction in drying shrinkage for the mortar containing 50 mass, % FeCr-slag and modified with 10 mass, % NMK reached 87% relative to the reference mortar.
The compressive strength gain at 28 days for different compositions with additions of calcined silt (CS) compared to the reference mortar is shown in Fig. 7.
The following main conclusions can be drawn: A reduction in the mechanical resistance according to the increase in percentage of PBW, which remains always close to the mortar of reference, when we recorded a fall of compressive strength at 28 days about 18 and 23%% for the mortars containing 10 and 20%% of waste respectively.
A reduction in the mechanical resistance according to the increase in percentage of PBW, which remains always close to the mortar of reference, when we recorded a fall of compressive strength at 28 days about 18 and 23%% for the mortars containing 10 and 20%% of waste respectively.
All mortars were prepared with a basic w/cm ratio of 0.30, not including entrained water (in the reference mortar) according to ACI 308 committee, so additional internal water is not part of the mixing water (Sahmaran et al. 2009).
Additionally dregs-containing mortars exhibited enhanced tensile (up to 71%) and compressive strength (up to 34%), and lower water absorption in comparison with the reference mortar.
On the other hand, this resulted in up to 100% increase of plastic viscosity of mortar in comparison with the Reference mortar cast with 100% Portland cement.
Two of the mortars contained different SAP content, and the last one was the reference mortar.
