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Página 220 - The fine aggregate shall be of such quality that mortar composed of one part Portland cement and three parts fine aggregate by weight when made into briquettes shall show a tensile strength at least equal to the strength of 1 : 3 mortar of the same consistency made with the same cement and standard Ottawa sand.
Página 224 - ... any improper materials used in its construction, or by or on account of any act or omission of the said Contractor, or his agents...
Página 220 - Mortars composed of one part Portland cement and three parts fine aggregate by weight when made into briquettes shall show a tensile strength of at least 70 per cent, of the strength of 1 :3 mortar of the same consistency made with the same cement and standard Ottawa sand.
Página 209 - ... shall pay all laborers, mechanics and sub-contractors and material men, and all persons who shall supply such person or persons or sub-contractors with provisions and supplies for the carrying on of such work, all just debts, dues and demands incurred in the performance of such work...
Página 209 - ... that if the proposal shall be accepted, the party thereto will perform the work upon the terms proposed and within the time prescribed and in...
Página 201 - Works does not, expressly or by implication, agree that the actual amount of work will correspond therewith, but reserves the right to increase or decrease the amount of any class or portion of the work, or to omit portions of the work, as may be deemed necessary or advisable by the Engineer.
Página 212 - Contractors, when directed by the Engineer in charge of the work, will deposit on the side of the road, or at such convenient points as may be designated, any stone or rock that they may excavate, and if in so doing they should deposit material required for embankment, the additional cost, if any, of procuring other materials from without the road will be allowed. All stone or rock excavated and deposited as above, together with all timber removed from the line of the road, will be considered the...
Página 227 - All bills for extra work done in any month shall be filed in writing with the engineer before the fifteenth of the following month; and...
Página 217 - ... and all labor and materials required in the performance of the work, but that portion of each pile cut off shall be estimated and paid for by the lineal foot as "piles cut off.
Página 205 - State of part of the second part, WITNESSETH, That the said part of the first part...

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