B737 PIC TAXIES ONTO NEWLY BLACK TOPPED RAMP NEAR A TEMPORARY BARRIER THAT WAS A NON STANDARD TYPE AND HAD NOT BEEN MENTIONED BY TWR AT ZZZ; US.

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LANDED RWY 26. EXITED TXWY B. RAMP AREA BTWN TXWY B AND TXWY A HAD SECTION WHICH HAD BEEN BLACK-TOPPED; AND WAS CORDONED OFF BY A FLIMSY 'BARRIER' OF INVERTED RED BUCKETS (ABOUT 6 INCHES IN DIAMETER BY 10 INCHES OR SO TALL) CONNECTED WITH A SMALL CORD. NO BARRIERS OR CONSTRUCTION LIGHTS. AS WE CAME IN ON TXWY B; A LARGE GROUP OF 8 OR 10 WORKERS CAME OUT OF A WORK AREA TO MY L AND CAME OUT ONTO THE CONCRETE SECTION OF TXWY B. I CAME TO THE R A BIT BECAUSE OF THIS GROUP OF MEN. WE SAW A B727 PARKED TO THE L OF WHERE WE WERE TO PARK; AND IT DIDN'T LOOK LIKE WE COULD CLR BEHIND HIM IF WE CAME IN ON THE CONCRETE; SO I CAME FURTHER TO THE R; FOLLOWING A VERY BRIGHT YELLOW TAXI LINE INTO THE BLACKTOP. WE WERE NOW IN THE BLACKTOP AREA (NO BUMPS -- IT WAS ON GRADE WITH THE REST OF THE RAMP); BUT AS SOON AS WE WENT ON THE BLACKTOP; WE SAW THE 'BUCKETS' AND CORD; WHICH LED US TO BELIEVE THEY DIDN'T WANT US TO BE USING THE BLACKTOP FOR TAXIING. TWR NEVER SAID A WORD ABOUT IT THE WHOLE TIME; SO MAYBE IT WAS NOT AN ISSUE AFTER ALL; AND I'M JUST PARANOID. WE TAXIED ACROSS THE BLACKTOP AREA; REJOINED THE CONCRETE AT TXWY A; AND PARKED. NO ONE EVER SAID A WORD; BUT OUR AGENT ASKED FOR OUR FAA LICENSE NUMBERS JUST BEFORE WE PUSHED BACK. I THINK IF THERE HAD BEEN CONSTRUCTION BARRIERS OR FLASHING YELLOW LIGHTS; WE MIGHT HAVE SEEN THE BARRIER SOONER AND NOT USED THE AREA. AS I SAID; THIS MAY BE A NON-EVENT; BUT I'M DOCUMENTING IT JUST IN CASE.